Added and configured Owin cookie authentication middleware
Signing in using Owin Cookie middleware
Modified Bugs page to get user information from User.Identity

Added ClaimsIdentityExtensions to encapsulate logic for retrieving
Claims from the current identity.
Modified DisplayBugs to use Identity instead of btnet.Security

Added BugPerPage claim
Row Level security using Identity instead of btnet.security.User
Added EnablePopups claim
Added CanAddBugs claim type
Added TagsPermissionLevel claim type
Added MainMenu user control
Added Authorization rules to BasePage
Modified all pages to use new authorization rules from Base Page
Allow anonymous access to forgot password page
Sign Out using Owin Cookie Authentication
Removed unused check_security method
Using MainMenu control on all pages

Removed old security.write_menu method
Call new SignIn method for NT and mobile logins
Migrating to Claims Identity

Removing dependencies on btnet.Security.user
Removed unused custom columns code
Moved Permission Levels to it's own class
Migrating to Claims Identity

Removed dependency on security.user from more pages.
Migrating to Claims Identity

Finished removing dependencies on btnet.Security.user
Removed unused properties from btnet.Security