Update knowledgebase_helper.rb

Line 20: the date (24 Feb 2014)  is more concise than the complete TimeStamp (Mon, 24 Feb 2014 23:21:17 +0000) for this section. This is a personal suggestion. 

Line 106: Redmine 2.1.1 moved to Rails 3, so there is no link_to_remote We must test for the 3rd digit not only 2.1
Merge pull request #239 from LabriePierre/patch-5

Update knowledgebase_helper.rb
Add Hungarian translation
Merge pull request #246 from qrtalaci/master

Add Hungarian translation
add László Kurta as a translator
Update index.html.erb
Code Cleanup

* Small code cleanup (idendation)
* Using except instead of only.
Update articles_controller.rb

Rate is also unneeded.
Update articles_controller.rb
Merge pull request #250 from CodeInsider/patch-2

Code Cleanup
Merge pull request #251 from CodeInsider/patch-3

Update articles_controller.rb
Update ja.yml

update Japanese translation
Merge pull request #252 from yanashing/patch-2

Update ja.yml
Label localization added
Update ja.yml

Fix typo
Merge pull request #253 from syanagisawa/patch-3

Update ja.yml
Merge pull request #248 from wiiitek/patch-1

Update index.html.erb, to show nice header (especially for A1 theme when there are no Articles)
fix attachment deletion issue on articles due to failed permissions check

refs #244, thanks to @luckyvb for the patch
Merge remote-tracking branch 'origin/master'
Update de.yml