Updated everyauth version to be compatible with Twitter API 1.1

Hi @bnoguchi, 

I've just did a very simple change on mongoose-auth, a bump in the version of everyauth, so it uses twitter api 1.1 instead of 1.0.

I've run your tests and passed all 3 of them :) Also tried it to login with twitter manually and it's working like a charm.

:)