Implements stock levels for list and detail view
Updates translation files and stock related string
Implements stock levels in demo application
Improves compatibility with other Javascript libraries
Adds abstract class for plugin providers
Fixes coding style and removes debug output
Merge branch 'master' of https://github.com/Arcavias/arcavias-core into 2013-08-13RefactorPluginsAddAbstractClass
Fixes minor issues in plugins
Merge pull request #275 from dahoffmann/2013-08-13RefactorPluginsAddAbstractClass

Adds abstract class for plugin providers
Improves design of stock levels in list and detail view
Merge pull request #276 from nsendetzky/master

Implements stock levels for list and detail view