Add comments about the supported resources.
Add implementations of contact resource methods.
Remove TODOs as unnecessary for now.
Test contacts.get.
Add test for contacts.get failure case.
Add tests for contacts.get_or_create.
Also check created field in replies to contacts.get_or_create.
Add tests for contacts.update.
Add tests for contacts.update_extras and contacts.update_subscriptions.
Add test for contacts.new.
Tests for contacts.save.
Fix jshint complaints.
Merge branch 'feature/issue-17-add-contact-resource-support-to-dummy-api' into develop