fix build break in music store
Add namespace for Response.Write extension.
fixing a broken link in musicstore.
Updated AngularHtmlHelper based on MVC changes
Use runtime APIs to locate AspNet.Loader.dll
Renamed configurations to frameworks in project.json
Renamed Project.json to Project.json2
Fixed project.json casing
React to Identity changes
Merging the MusicStore & MusicStoreIdentity Db into one.

This has been a feedback from identity team for a while. Just got time to do it now.