Fix .travis.yml

git submodule no longer exists.
Merge pull request #155 from kartikm/travis

Fix .travis.yml
Adding Rutul language

Requested in the Russian Wikipedia for the Rutul incubator.

https://ru.wikipedia.org/wiki/Обсуждение_проекта:Разделы_Википедии_на_региональных_языках_России
Merge pull request #156 from amire80/rut

Adding Rutul language