Improves usability by checking for mandatory fields via Javascript within the checkout process
Uses own custom paths for searching the ExtJS controller and extends autoloading to the composer class map if available
Fixes tests for modified JsonRpc controller
Merge pull request #217 from nsendetzky/master

Improves usability and uses custom paths to find ExtJS controllers
Merge https://github.com/Arcavias/arcavias-core into 2013-06-13_Adapt_Paddings_Margins
adapt filternavigation active status