Add entities and mappings.
Add repository classes.
Add UserAccountService implementation.
Constrained TAccount to be of type NhUserAccount.
Refactor entities removing unnecessary code (UserAccountId property not needed).
Create NHibernate sample.
Remove unnecessary UserAccountService implementation.
Create registration and login samples.
Remove Nhibernate profiler.
Merge branch 'nhibernate' into nh
moved NH folder to samples