Add in `.DS_Store` for fools like me
Add in json plugin to requirejs

- Allows us to load in json fixtures using requirejs
- Uses `json` plugin from https://github.com/millermedeiros/requirejs-plugins to load in json
- This has a stupid syntax, but I think it's better than adding a huge object into our tests
Move fixtures to base of app
Add fixtures in as initial dependencies

- In order to pacify both `grunt jasmine` and `grunt jasmine_node` we need to load in our fixtures before running any tests. I couldn't find a way to reliabily load in fixtures at the time of running the test: the environment has to be setup first
- Renames fixtures to something a bit more obvious
- TODO: add global fixtures path?
Just test ten dashboards — we're in sprint mode!
Merge pull request #832 from alphagov/feature/load-json-fixtures

Feature/load json fixtures
Add extra cheapseats entries to the travis build matrix

- Push travis's build matrix (http://docs.travis-ci.com/user/speeding-up-the-build/) to run 5 jobs concurrently
Revert "Pin nodejs to the version we use locally."

This reverts commit c3383199d0446a211b5b2f1f6abf385e3c47a407.

Travis only provides the latest stable version (0.10.x), so 0.10.31
is no longer available on some machines.