Try to use the logged-in resource on find_resource filter.

If it's not logged in, session[<resource>_id] is used to find it.

Fixes #2
Delete old app for tests
Add new app for tests
Add gemspec to gemfile
Update routes of new app for tests
Add rails to Gemfile
Fix request sms end point.

It should use the authy id instead of the resource id.
Merge remote-tracking branch 'origin/fix-issue-2' into fix-issue-2
add files to gitignore and remove log files of rails app for test
Updated and added specs for devise_authy_controller
Fix specs for generators
updated and added new specs for routes
Added integration tests
Bump version and regenerate gemspec.