This option make 'rebar get-deps' command to always fetch latest versions
of deps that are developed together with ejabberd instead of using frozen
commit/branch/tag.
Specifying "--enable-nif" or "--disable-nif" when running ejabberd's
configure script has no effect anymore: NIF support is enabled by
default and can only be disabled by building the p1_xml dependency with
"--disable-nif".
Use dynamic Rebar configuration
Make iconv dependency optional
Disable transient_supervisors compile option
Add hipe compilation support
Only compile ibrowse and lhttpc when needed
Make it possible to generate an OTP application release
Add --enable-debug compile option
Add --enable-all compiler option
Add --enable-tools configure option
Add --with-erlang configure option.
Add --enable-erlang-version-check configure option.
Add lager support
Improve the test suite