* Update .gitignore to ignore .idea.
* Removed unused local variables.
* use local context and Message class instead of deprecated wfMsg* methods.
* Remove redundant px in CSS where possible.
* Combine CSS statements where possible.
* Replace b by strong.
Change-Id: I9d5ed7b7ce585a1c101044254bcbdfc33d42afc1
* Added codes used on translatewiki.net.
* Uncommented and updated a few codes.
* Put a few comments on a separate line, because when trailing, the conversion script b0rks.
* Updated the script groups with new scripts.
* Corrected the tests.
Change-Id: Ia53195834c2afc908d57d2f396bc317fadb2c7a9