remove trailing white-spaces from application.css
Merged r10940 from trunk to 2.2-stable (#12494)
Bulgarian "button_submit" translation changed by Ivan Cenov.
remove trailing white-space from app/models/issue_category.rb
Bulgarian "button_submit" translation changed by Ivan Cenov (#12494)
Code cleanup.
Removed unused Redmine::About class.
Adds tests for when showing/deleting an invalid issue.
Functional tests cleanup.
Test case cleanup.
Add a test for my page with all blocks.