Adds site specific language combo box item
Trying to merge 2 stores
Actual code
Removes unused renderer method and adds optional filter for locale language controller
Merge https://github.com/Arcavias/arcavias-core into 2013-11-07_languages_only_from_site
Removes not used entry
Fixes bug that after duplicate entry error, there is always an duplicate error although the data is correct
Restores removed renderer
Fixes configui, makes edit keys possible
Adds trim function on key and value
Fixes case if no language is available
Adapts test data to reflect more cases without using the sub-products
Displays no articles of selection products in list view

This was the case when no category or text for searching was available
Merge pull request #365 from nsendetzky/master

Displays no articles of selection products in list view and adapts test data
Show IDs of nodes in front of them
Fixes saving categories for selection products multiple times, optimizes the number database requests
Optimizes index rebuild performance and fixes tests
Merge pull request #369 from nsendetzky/master

Fixes saving categories for selection products and optimizes index rebuild performance
Removes old SVN version headers
Improves if statement