added action filters for designer

also added dialogFeedbackService
more promises, less events
Merge branch 'master' of https://github.com:boyko-karadzhov/Sitefinity/feather into designerRefactoring
provider selector now uses ngModel
removed unneeded scope var
Merge branch 'master' of https://github.com:boyko-karadzhov/Sitefinity/feather into designerRefactoring