#82 rename some constants and add key for vim binding activation
 #82 do not use defaultManager
#82 minor refactoring
#82 remove unnec' properties
#82 minor refactoring
#82 remove unnec' log
#82 add test for select open url
#82 add more tests for VRWorkspace
#82 factory'fy workspace view and file browser view
 #82 add more tests for workspace controller
Merge branch 'develop'