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.
Fixing CopyAspNetLoader batch file to consider the new location of AspNet.Loader.dll

With a recent change Aspnet.Loader.dll will be restored to %userprofile%\.kpm\packages. Fixing the batch file accordingly.
Fixing a test failure due to a recent change.

Adding some delay for the selfhost tests. With the recent change of merging the dbs selfhost based tests start even before the data is populated into the db & application start. Adding a slight delay to allow the setup finish.
And fixing a test bug that was not surfacing. Was checking with a fixed album id. This worked before as the id created was always 453.
Use InMemoryStore if the sample is being run on Mono

Detecting if the application is running on mono and using InMemoryStore instead of SqlServer.