Be able to dump a user DB through superadmin

Conflicts:
	config/routes.rb
	spec/requests/superadmin/users_spec.rb
Added superadmin specs to Makefile

Conflicts:
	Makefile
Destroy all users after superadmin tests

Conflicts:
	spec/requests/superadmin/users_spec.rb
Added testing attribute
Don't stub user model methods in superadmin tests
Stub enable_remote_db_user
Created cartodb organization factory
Removed debugger
Fixed organization test
Start using new organization factory from all test
More options for organization factory
Fixed user_spec test

It worked by chance
Fixed user spec test to work with new org factory
Merge pull request #640 from CartoDB/CDB-1506

CDB-1506