Bump Rails to 4.0.2, upgrade configuration

* Bump Devise to latest compatible, 3.2.2.
* Remove incompatible active_schema dependency.

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Upgrade Devise configuration (inc. secret_key)

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Replace deprecated catch all route with verb match

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Fix Devise Controller to handle strong parameters

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Rescue from ParameterMissing with 400 status code

Signed-off-by: Alex Coles <alex@alexbcoles.com>