[OAuth2Provider] Copy basic templates from OAuth2_provider to ReviewBoard to make it ReviewBoard

Review Request #7916 — Created Jan. 29, 2016 and discarded — Latest diff uploaded

Information

Review Board
master

Reviewers

Templates for confirm delete form, application detail form, registration form
from OAuth2_provider are copied to ReviewBoard with modifications to
have a ReviewBoard touch and feel. A new LESS is added for OAuth2 forms .

Manual test. Check screenshot