let authenticator set the description of the viewController
rename localizable string and add HockeyAuthenticationViewControllerWebAuthLoginDescription

prepare for WebAuth
rename ivar

adjust name so that it's not that easy to confuse
it with the identificationType. This is only the type of
the identifier.
add "webAuth" identificationType
More documentation for feedback view controllers
Small UI fix for feedback user data view controller

- Fix small positioning issue
- Set autocapitalization for name field for every word
Merge branch 'feature/WebBasedAuthentication' into develop