Bumping up rails dependency
Adding compatibility with Rails 4. Keeping compatibility with rails 3. Adding support for strong parameters. Fixing form_for which does not allow nil objects(resource). Fixing generators.
Fix on view template
Updated gitignore due to updated rvm
Merge branch 'feature/rails4' of github.com:ronald05arias/devise_google_authenticator into ronald05arias-feature/rails4

Merging a Rails4 compatible pull request from ronald05arias
Minor adjustments to update controller code to align with updated Devise
Update to 0.3.7