Pass on User_id variable…

- Pass on User_id variable from Profile View to New Credit Controller
- Changed redirect_to page from credit created to profile page.
Registration changes

- Removed last and profile name from registration form.
- Replace full_name to first_name from views
Generated App Doc
Credit Calculations and Grouping

- Added variables to see total amount of credit with each Merchant on
the Merchants Page
- Added variable to see total amount of credit per merchant on the
credit index view.
- Toggled between Data-Role & Table View depending on user profile.
- Added condition to show a message to the user in case it has no
credits at all.
Merchants & users visibility

- For the Merchant User Environment, created a data-role view with only
the users that have credit with that Merchant
- Admins can see all users.
- On Merchants environment, when show profile they only see amount and
created_at.