refactoring contentblock designer

and shared content selector
Added Navigation widget project

Includes basic implementation of Navigation widget controller, model and
simple view.
refactored share/unshare dialogs
Merge branch 'master' of https://github.com:Boyko-Karadzhov/Sitefinity/feather-widgets into designerRefactoring
Added Horizontal template
localized strings in the designer

and share/unshare dialogs
fixed designer cancelling issue
Adds Navigation templates

Added Vertical, Sitemap, Tabs templates. Changed the framework of the
Navigation project to 4.0
Added missing UI Test Cases settings
Merge branch 'master' of https://github.com/Sitefinity/feather-widgets
Extracted css in separate class
Fix test settings for ui tests build
Fix agent role
Set remote test controller
ContentBlock designer views by convention
Merge branch 'master' of https://github.com:Boyko-Karadzhov/Sitefinity/feather-widgets into designerRefactoring
resolving controllers by convention
removed unneeded resource
Added linkTarget
Added responsive transformations