Add password reset request handling to the account page

As per [ECOM-347](https://openedx.atlassian.net/browse/ECOM-347). The next step in the password reset process (confirmation) is currently handled by student.views.password_reset_confirm_wrapper, a custom wrapper around Django's password reset confirmation view.

@wedaly and @stephensanchez, could you review this?
[Binding data to a form](https://docs.djangoproject.com/en/1.4/ref/forms/api/#django.forms.Form) requires passing the data as a dictionary to the Form class constructor.