Fauxton tests on travis

@Kxepal this hopefully gets Travis running working Fauxton tests.

It's branched off of my other branch that's pending in #133, so merging this obviates the need of the other.

I need to sort out getting Travis to run my branches, so I can test this properly. Hopefully pushing it to a branch in the apache/couchdb repo would let you know quickly if it works. :smile:

It should of course. :smile_cat: