Replace HAML with SLIM
Update CHANGELOG
Format form.scss file.
Format reset.scss file.
Format responsive.scss file.
Improve the Heroku deployment warning
Add info about not commiting on production branch
Better "Credits" section title
Remvoe deferred_garbage_collection

fixes #279
Remove dupicate error messages section on locales
Update changelog
Move info about removing gems to contributing file
Merge pull request #309 from Helabs/mg-gem-and-post

Move info about removing gems to contributing file.
Convert to haml
Merge branch 'slim-rails-mauro' into slim-rails

Conflicts:
	lib/pah/files/app/views/application/_flash_messages.html.slim
	lib/pah/files/app/views/layouts/application.html.slim
Some fixes on slim => haml
Merge pull request #311 from Helabs/slim-rails

Slim rails.

Closes #281.
Move changelog to correct place
Remove variables declaration from general scss.
Merge pull request #284 from Helabs/move-variables

Move variables.