Recovery mechanisms for users

Follow up to commit - 73ef0e1af60efd13cd95d0d92f6007fec77b3c94
Incorporated review comments from rvenkat.

* horizon_jiocloud/signup/forms.py
  + Fixed text changes and modified import statements according to
    PEP-0328

Fixes bug #1324074
Fixes bug #1324073

Implements: blueprint forgot-password-jio-dashboard