The file `src/install-sh` was added in c311ea1.
Most files from that commit were removed in 4d8f770 and install-sh was moved.
Since recent commit 7cae092, `./configure` checks for a race-free `mkdir -p`,
the `install-sh` script may be used, and it needs execution permission.
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