diff --git a/.eslintrc.yml b/.eslintrc.yml
index 83f4de09..1c054f9c 100644
--- a/.eslintrc.yml
+++ b/.eslintrc.yml
@@ -19,6 +19,7 @@ rules:
   security/detect-non-literal-fs-filename: off
   security/detect-object-injection: off
 
+  eol-last: [error, always]
   eqeqeq: error
   no-console: warn
   no-path-concat: error
diff --git a/.stylelintrc b/.stylelintrc
index c0c673c7..eba93b1b 100644
--- a/.stylelintrc
+++ b/.stylelintrc
@@ -4,3 +4,4 @@ rules:
   color-hex-case: lower
   declaration-colon-newline-after: null
   selector-list-comma-newline-after: null
+  value-list-comma-newline-after: null
diff --git a/package-lock.json b/package-lock.json
index 3640a72c..efba991d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -120,12 +120,6 @@
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       "dev": true
     },
-    "array-differ": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/array-differ/-/array-differ-1.0.0.tgz",
-      "integrity": "sha1-7/UuN1gknTO+QCuLuOVkuytdQDE=",
-      "dev": true
-    },
     "array-filter": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/array-filter/-/array-filter-0.0.1.tgz",
@@ -228,16 +222,16 @@
       "dev": true
     },
     "autoprefixer": {
-      "version": "6.7.7",
-      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-6.7.7.tgz",
-      "integrity": "sha1-Hb0cg1ZY41zj+ZhAmdsAWFx4IBQ=",
+      "version": "7.1.2",
+      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-7.1.2.tgz",
+      "integrity": "sha1-++rwfUj9h44Ggr98vurecorbKxg=",
       "dev": true,
       "requires": {
-        "browserslist": "1.7.7",
-        "caniuse-db": "1.0.30000704",
+        "browserslist": "2.2.2",
+        "caniuse-lite": "1.0.30000708",
         "normalize-range": "0.1.2",
         "num2fraction": "1.2.2",
-        "postcss": "5.2.17",
+        "postcss": "6.0.8",
         "postcss-value-parser": "3.3.0"
       }
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@@ -574,12 +568,12 @@
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     "browserslist": {
-      "version": "1.7.7",
-      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-1.7.7.tgz",
-      "integrity": "sha1-C9dnBCWL6CmyOYu1Dkti0aFmsLk=",
+      "version": "2.2.2",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-2.2.2.tgz",
+      "integrity": "sha512-MejxGMNIeIqzgaMKVYfFTWHinrwZOnWMXteN9VlHinTd13/0aDmXY9uyRqNsCTnVxqRmrjQFcXI7cy0q9K1IYg==",
       "dev": true,
       "requires": {
-        "caniuse-db": "1.0.30000704",
+        "caniuse-lite": "1.0.30000708",
         "electron-to-chromium": "1.3.16"
       }
     },
@@ -649,7 +643,8 @@
     "camelcase": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-1.2.1.tgz",
-      "integrity": "sha1-m7UwTS4LVmmLLHWLCKPqqdqlijk="
+      "integrity": "sha1-m7UwTS4LVmmLLHWLCKPqqdqlijk=",
+      "optional": true
     },
     "camelcase-keys": {
       "version": "2.1.0",
@@ -674,16 +669,17 @@
       "resolved": "https://registry.npmjs.org/camelize/-/camelize-1.0.0.tgz",
       "integrity": "sha1-FkpUg+Yw+kMh5a8HAg5TGDGyYJs="
     },
-    "caniuse-db": {
-      "version": "1.0.30000704",
-      "resolved": "https://registry.npmjs.org/caniuse-db/-/caniuse-db-1.0.30000704.tgz",
-      "integrity": "sha1-jFqm/tgFjmXHDywfXWP3CIZQcFw=",
+    "caniuse-lite": {
+      "version": "1.0.30000708",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30000708.tgz",
+      "integrity": "sha1-cdvziMV/N5sbtmyJqJDtwEwlCbY=",
       "dev": true
     },
     "center-align": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/center-align/-/center-align-0.1.3.tgz",
       "integrity": "sha1-qg0yYptu6XIgBBHL1EYckHvCt60=",
+      "optional": true,
       "requires": {
         "align-text": "0.1.4",
         "lazy-cache": "1.0.4"
@@ -736,6 +732,7 @@
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/cliui/-/cliui-2.1.0.tgz",
       "integrity": "sha1-S0dXYP+AJkx2LDoXGQMukcf+oNE=",
+      "optional": true,
       "requires": {
         "center-align": "0.1.3",
         "right-align": "0.1.3",
@@ -745,7 +742,8 @@
         "wordwrap": {
           "version": "0.0.2",
           "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz",
-          "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8="
+          "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=",
+          "optional": true
         }
       }
     },
@@ -774,56 +772,12 @@
         "color-name": "1.1.3"
       }
     },
-    "color-diff": {
-      "version": "0.1.7",
-      "resolved": "https://registry.npmjs.org/color-diff/-/color-diff-0.1.7.tgz",
-      "integrity": "sha1-bbeM2UgqjkWdQIIer0tQMoPcuOI=",
-      "dev": true
-    },
     "color-name": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
       "dev": true
     },
-    "colorguard": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/colorguard/-/colorguard-1.2.0.tgz",
-      "integrity": "sha1-8/rK9cquuk71RlPZ+yW7cxd8DYQ=",
-      "dev": true,
-      "requires": {
-        "chalk": "1.1.3",
-        "color-diff": "0.1.7",
-        "log-symbols": "1.0.2",
-        "object-assign": "4.1.1",
-        "pipetteur": "2.0.3",
-        "plur": "2.1.2",
-        "postcss": "5.2.17",
-        "postcss-reporter": "1.4.1",
-        "text-table": "0.2.0",
-        "yargs": "1.3.3"
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-      "dependencies": {
-        "postcss-reporter": {
-          "version": "1.4.1",
-          "resolved": "https://registry.npmjs.org/postcss-reporter/-/postcss-reporter-1.4.1.tgz",
-          "integrity": "sha1-wTbwpbFhkV83ndN2XGEHX357mvI=",
-          "dev": true,
-          "requires": {
-            "chalk": "1.1.3",
-            "lodash": "4.17.4",
-            "log-symbols": "1.0.2",
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-        "yargs": {
-          "version": "1.3.3",
-          "resolved": "https://registry.npmjs.org/yargs/-/yargs-1.3.3.tgz",
-          "integrity": "sha1-BU3oth8i7v23IHBZ6u+da4P7kxo=",
-          "dev": true
-        }
-      }
-    },
     "combine-source-map": {
       "version": "0.7.2",
       "resolved": "https://registry.npmjs.org/combine-source-map/-/combine-source-map-0.7.2.tgz",
@@ -1057,9 +1011,9 @@
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
     "cosmiconfig": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-2.2.1.tgz",
-      "integrity": "sha512-17m9pl5cD9jhPUHqaxSA4fyoiAQJUG7V3CQDxCF7gWzGYeUY0YEnLQdQyOEKjEPVv0yGbdCfdfJMq6SphRiRjw==",
+      "version": "2.2.2",
+      "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-2.2.2.tgz",
+      "integrity": "sha512-GiNXLwAFPYHy25XmTPpafYvn3CLAkJ8FLsscq78MQd1Kh0OU6Yzhn4eV2MVF4G9WEQZoWEGltatdR+ntGPMl5A==",
       "dev": true,
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@@ -1131,75 +1085,6 @@
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       "integrity": "sha1-zFRJaF37hesRyYKKzHy4erW7/MA="
     },
-    "css-color-names": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/css-color-names/-/css-color-names-0.0.3.tgz",
-      "integrity": "sha1-3gzvFvTYqoIioyDVttfpu62nufY=",
-      "dev": true
-    },
-    "css-rule-stream": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/css-rule-stream/-/css-rule-stream-1.1.0.tgz",
-      "integrity": "sha1-N4bnGYmD2WWibjGVfgkHjLt3BaI=",
-      "dev": true,
-      "requires": {
-        "css-tokenize": "1.0.1",
-        "duplexer2": "0.0.2",
-        "ldjson-stream": "1.2.1",
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-        "duplexer2": {
-          "version": "0.0.2",
-          "resolved": "https://registry.npmjs.org/duplexer2/-/duplexer2-0.0.2.tgz",
-          "integrity": "sha1-xhTc9n4vsUmVqRcR5aYX6KYKMds=",
-          "dev": true,
-          "requires": {
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-        "isarray": {
-          "version": "0.0.1",
-          "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
-          "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
-          "dev": true
-        },
-        "through2": {
-          "version": "0.6.5",
-          "resolved": "https://registry.npmjs.org/through2/-/through2-0.6.5.tgz",
-          "integrity": "sha1-QaucZ7KdVyCQcUEOHXp6lozTrUg=",
-          "dev": true,
-          "requires": {
-            "readable-stream": "1.0.34",
-            "xtend": "4.0.1"
-          },
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-              "version": "1.0.34",
-              "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.0.34.tgz",
-              "integrity": "sha1-Elgg40vIQtLyqq+v5MKRbuMsFXw=",
-              "dev": true,
-              "requires": {
-                "core-util-is": "1.0.2",
-                "inherits": "2.0.3",
-                "isarray": "0.0.1",
-                "string_decoder": "0.10.31"
-              }
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-    "css-tokenize": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/css-tokenize/-/css-tokenize-1.0.1.tgz",
-      "integrity": "sha1-RiXLHtohwUOFi3+B1oA8HSb8FL4=",
-      "dev": true,
-      "requires": {
-        "inherits": "2.0.3",
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@@ -1368,67 +1253,6 @@
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-      "resolved": "https://registry.npmjs.org/doiuse/-/doiuse-2.6.0.tgz",
-      "integrity": "sha1-GJLRC2Gpo1at2/K2FJM+gfi7ODQ=",
-      "dev": true,
-      "requires": {
-        "browserslist": "1.7.7",
-        "caniuse-db": "1.0.30000704",
-        "css-rule-stream": "1.1.0",
-        "duplexer2": "0.0.2",
-        "jsonfilter": "1.1.2",
-        "ldjson-stream": "1.2.1",
-        "lodash": "4.17.4",
-        "multimatch": "2.1.0",
-        "postcss": "5.2.17",
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-        "through2": "0.6.5",
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-          "resolved": "https://registry.npmjs.org/duplexer2/-/duplexer2-0.0.2.tgz",
-          "integrity": "sha1-xhTc9n4vsUmVqRcR5aYX6KYKMds=",
-          "dev": true,
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-          "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
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-          "resolved": "https://registry.npmjs.org/through2/-/through2-0.6.5.tgz",
-          "integrity": "sha1-QaucZ7KdVyCQcUEOHXp6lozTrUg=",
-          "dev": true,
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-              "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.0.34.tgz",
-              "integrity": "sha1-Elgg40vIQtLyqq+v5MKRbuMsFXw=",
-              "dev": true,
-              "requires": {
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@@ -2127,12 +1951,6 @@
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       "dev": true
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-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/gather-stream/-/gather-stream-1.0.0.tgz",
-      "integrity": "sha1-szmUr0V6gRVwDUEPMXczy+egkEs=",
-      "dev": true
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     "get-stdin": {
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@@ -2583,12 +2401,6 @@
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       "integrity": "sha1-HgOlL9rYOou7KyXL9JmLTP/NPew="
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-    "irregular-plurals": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/irregular-plurals/-/irregular-plurals-1.3.0.tgz",
-      "integrity": "sha512-njf5A+Mxb3kojuHd1DzISjjIl+XhyzovXEOyPPSzdQozq/Lf2tN27mOrAAsxEPZxpn6I4MGzs1oo9TxXxPFpaA==",
-      "dev": true
-    },
     "is-arrayish": {
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       "resolved": "https://registry.npmjs.org/is-arrayish/-/is-arrayish-0.2.1.tgz",
@@ -2871,80 +2683,6 @@
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-      "resolved": "https://registry.npmjs.org/jsonfilter/-/jsonfilter-1.1.2.tgz",
-      "integrity": "sha1-Ie987cdRk4E8dZMulqmL4gW6WhE=",
-      "dev": true,
-      "requires": {
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-        "minimist": "1.2.0",
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-          "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
-          "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
-          "dev": true
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-          "resolved": "https://registry.npmjs.org/jsonparse/-/jsonparse-0.0.5.tgz",
-          "integrity": "sha1-MwVCrT8KZUZlt3jz6y2an6UHrGQ=",
-          "dev": true
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-        "JSONStream": {
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-          "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-0.8.4.tgz",
-          "integrity": "sha1-kWV9/m/4V0gwZhMrRhi2Lo9Ih70=",
-          "dev": true,
-          "requires": {
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-          "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
-          "dev": true
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@@ -3013,7 +2751,7 @@
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-      "integrity": "sha1-iZyUvjaOVbQtfbjVvn1zpKSkFFQ=",
+      "integrity": "sha512-UTCzU28rRI9wkb8qSGoZa9pgWvxr4LjP2MEhi9XHb/1XMOJy0uTnIxaxzj8My/PORG+kQG6VzAcGvRw66eIOfA==",
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@@ -3049,47 +2787,8 @@
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       "resolved": "https://registry.npmjs.org/subarg/-/subarg-1.0.0.tgz",
@@ -5329,12 +4978,12 @@
       }
     },
     "sugarss": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/sugarss/-/sugarss-0.2.0.tgz",
-      "integrity": "sha1-rDQjdWMyfG/4l7ZHQr9q7BkK054=",
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/sugarss/-/sugarss-1.0.0.tgz",
+      "integrity": "sha1-ZeUbOVhDL7cNVFGmi7M+MtDPHvc=",
       "dev": true,
       "requires": {
-        "postcss": "5.2.17"
+        "postcss": "6.0.8"
       }
     },
     "superagent": {
@@ -5407,15 +5056,6 @@
       "resolved": "https://registry.npmjs.org/symbol/-/symbol-0.3.1.tgz",
       "integrity": "sha1-tvmpANSWpX8CQI8iGYwQndoGMEE="
     },
-    "synesthesia": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/synesthesia/-/synesthesia-1.0.1.tgz",
-      "integrity": "sha1-XvlepUjA1cbm+btLDQcx3/hkp3c=",
-      "dev": true,
-      "requires": {
-        "css-color-names": "0.0.3"
-      }
-    },
     "syntax-error": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/syntax-error/-/syntax-error-1.3.0.tgz",
@@ -5759,7 +5399,8 @@
     "window-size": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz",
-      "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0="
+      "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=",
+      "optional": true
     },
     "wordwrap": {
       "version": "0.0.3",
@@ -5780,12 +5421,6 @@
         "mkdirp": "0.5.1"
       }
     },
-    "write-file-stdout": {
-      "version": "0.0.2",
-      "resolved": "https://registry.npmjs.org/write-file-stdout/-/write-file-stdout-0.0.2.tgz",
-      "integrity": "sha1-wlLXx8WxtAKJdjDjRTx7/mkNnKE=",
-      "dev": true
-    },
     "x-xss-protection": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/x-xss-protection/-/x-xss-protection-1.0.0.tgz",
@@ -5824,6 +5459,7 @@
       "version": "3.10.0",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
       "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
+      "optional": true,
       "requires": {
         "camelcase": "1.2.1",
         "cliui": "2.1.0",
diff --git a/package.json b/package.json
index 3d755042..db7f369f 100644
--- a/package.json
+++ b/package.json
@@ -33,8 +33,8 @@
     "raven-js": "^3.17.0",
     "selenium-webdriver": "^3.5.0",
     "sinon": "^2.3.8",
-    "stylelint": "^7.13.0",
-    "stylelint-config-standard": "^16.0.0",
+    "stylelint": "^8.0.0",
+    "stylelint-config-standard": "^17.0.0",
     "supertest": "^3.0.0",
     "testpilot-ga": "^0.3.0",
     "uglifyify": "^4.0.3"
@@ -72,7 +72,7 @@
     "build:version": "node scripts/version",
     "build:l10n": "cp node_modules/l20n/dist/web/l20n.min.js public",
     "dev": "npm run build && npm start",
-    "format": "prettier '{frontend/src/,scripts/,server/,test/**/}*.js' 'public/*.css' --single-quote --write",
+    "format": "prettier '{frontend/src/,scripts/,server/,test/**/!(bundle)}*.js' 'public/*.css' --single-quote --write",
     "lint": "npm-run-all lint:*",
     "lint:css": "stylelint 'public/*.css'",
     "lint:js": "eslint .",