Merge pull request #168 from jwalkerbg/master

Translated to Bulgarian language
Added german translations
Added translation string for all permissions
Update knowledgebase_controller.rb

Some minor codecleanup.
Merge pull request #172 from CodeInsider/patch-1

Update knowledgebase_controller.rb
Merge pull request #171 from CodeInsider/master

Added german translation and permission translations for all languages
Update knowledgebase_helper.rb

Reduced assignments and codeduplication.
Merge pull request #174 from CodeInsider/patch-1

Update knowledgebase_helper.rb
[#162] fix sorting of attachments to not break MSSQL
add author_url
Translated permission labels into BG language.