Cleanup identity comments
Updated Readme.md and k.ini to use 0421 build. Deleted kvm.cmd
Updated Readme.md
More edits to Readme.md
Clean up identity DI
modified readme based on pr comments, deleted build.cmd and lkg.json
Merge pull request #107 from aspnet/ReadmeUpdates

Readme updates and deleted build.cmd, lkg.json, kvm.cmd
Pin to build 1678
Update README.md
Update README.md
Create CONTRIBUTING.md
Bringing back build.cmd and makefile.shade since CI depends on them
Merge pull request #111 from aspnet/ReadmeUpdates

Bringing back build.cmd and makefile.shade since CI depends on them
Removed Visual studio reference from README.md
Update Music Store to use new EF EnsureCreated method.

Also updating project.json to pin the new EF build.
Added port of SPA app to vNext as MusicStore.Spa
- Front-end store (catalog) and login with validation working
- Admin pages not working yet
Updating kproj file to match tooling changes
Replacing fixed build numbers with * to enable CI build

Created a master branch with fixed build numbers that we used for alpha. Dev branch will build with latest product builds.