Fixes the client-side tests after the removal of the <base/> tag from
the main layout.
These fixes aren't ideal. At the moment, they will suffice. This comment
(https://github.com/angular-ui/ui-router/issues/212#issuecomment-60803437),
among others in that issue, led me to choose this method as the fix to
avoid having to change any other core code.
Replaces the $http service calls with promise based methods
of the client-side UsersService for the following:
Users Change Password
Users Manage Social Accounts
Users Password Forgot
Users Password Reset
Users Signup
Users Signin
Modifies tests to reflect changes.
Closes#1479