[FEATURE] Fix User.createAdmin function to allow only one.
[CHORE] Rename BankAccountsCtrl in angular to AdminGateayAccountsCtrl
[FEATURE] Hide table if no gateway accounts exist
[FEATURE] Show if user is admin, do not gather ripple address info.
[CHORE] Add/remove new and unused controllers from index.html script import.
[CHORE] Remove admin_deposits controller -- moved.
[FEATURE] Add admin gateway angular controllers for accounts and deposits.
[FEATURE] Add base64 algorithm and http basic auth to user login service.
[FEATURE] Add angular controller for logging in new user.