Add 'Cancel' to login form

[patmbolger]

As a user
I want to be able to cancel out of the login form
And be back on the page from which I clicked "Login"

[patmbolger]

Enhance the user login feature:

• Allow user to cancel login and return to page the user was on when he/she clicked the 'login' button
• After successful login, the user should return to page the user was on when he/she clicked the 'login' button

[amba178]

The second part a bit complex, it forces us maybe to override session control for devise, and utilize session. @patmbolger : Do you have any rough idea how to go about it.

[patmbolger]

Suggest these as possible approaches:

1. Possibly redirect back to prior page - here are some ideas: http://stackoverflow.com/questions/2139996/how-to-redirect-to-previous-page-in-ruby-on-rails

2. Change login form to be a pop-up (modal) dialog box over the current page. Look at what I did for the company registration 'deny' action. (register a company registration request as a site visitor, login as agency admin, click on company name in the admin home page, then click 'Deny' button).