Fixes issue #473: workaround for chrome bug in namespace handling for WPSExecute
Fixes #476: by layer loading progress spinner and error icons for WMSSource
Fixed by layer loading: start spinner for newly added layers, already in the loading phase
minor fixes to default labels and styles
Add entity manager and file browser plugin
Merge pull request #494 from offtherailz/master

Add entity manager and file browser plugin
Merge pull request #479 from mbarto/bylayer_loading_progress

Fixes #476: by layer loading progress spinner and error icons for WMSSource
Merge pull request #474 from mbarto/issue_473_wps_xlink

Fixes issue #473: workaround for chrome bug in namespace handling for WPSExecute
Fixed error icon shown on invisible layers
Merge pull request #496 from mbarto/fix_error_icon

Fixed error icon shown on invisible layers