moving lib -> vendor/lib

One commit is very large so it is easier to just look at the commits with code changes:

https://github.com/Wikia/app/commit/9ad22ede4d3e3ecaebe2d113d9e7ef346362a0c0
https://github.com/Wikia/app/commit/669731197a421268430a5041d46c17d40547f4ff