Allow me to use the logic that creates nodes without having to attach them
Rename create to be more specific, remove from global
Tests for createNodes. Many affix tests move to createNodes tests
Reorganize specs into a single file
Pretty intense refactor

* Stop dropping stuff at top level jQuery. $.jasmine is now 
jasmine.fixture
* Internally reorganize methods a bit
* noConflict() method will now undo all global changes and side effects
*except* for the afterEach hook
* jasmine.fixture now has a `create` and an `affix` method. You can
also continue to use `window.affix` as you always have, but this may
be deprecated in the future for users to cache themselves (haven't
decided)
1.2.0