Misc.
Merge branch 'master' of github.com:aspectron/zetta-login
Remove enable and disable 2FA functional
Merge branch 'master' of github.com:aspectron/zetta-login
Added two steps auth for MongoDBAuthenticator
Merge branch 'master' into dev

Conflicts:
	zetta-login.js
Repair code after conflict resolved
Added two steps auth for BasicAuthenticator + add totp logic to login view
Merge branch 'master' of github.com:aspectron/zetta-login
Merge branch 'dev' of github.com:aspectron/zetta-login