Add background layer selector service
Use background layer selector service
Make permalink service more testable
Fix URL generation bug in permalink service
Remove the map controller tests

Not much to test in here. And we want to test the reusable parts really.
Add sinon.js for mocks, spies & co
Add tests for map directive
Add tests for bg layer selector directive
Add tests for permalink service
Merge pull request #48 from geoadmin/dev_tests

Add tests for map, bg layer selector and permalink