I save textarea value before rendering comments when clicked 'show more..'
Merge pull request #4858 from hincupetru/4514-clicking-show-more-comments-empties-textarea

Save textarea value before rendering comments when clicked 'show more....'
Replace .rvmrc by .ruby-version

Also relax the requirement. The .ruby-version represents
merely a recomendation for the Ruby version. The incompability
issues in the Ruby world are far less currently, than they were
when we introduced strict version enforcement. Thus strict
enforcement is no longer appropiate. Same holds for RubyGems.

This implicity also removes the recomendation on using RVM.
The .ruby-version file is supported by all major Ruby version
managers. Gemsets are no longer a needed feature since Bundler
handles multiple concurrrently installed Gems just well.
Patch grammar in admin interface
Merge pull request #4876 from fractalcat/wip-interface-fixes

Patch grammar in admin interface
Merge pull request #4855 from MrZYX/drop_rvmrc

Replace .rvmrc by .ruby-version