[BUGFIX] fix processing of import statements in css
Merge pull request #1400 from joostdevries/use-relative-to-for-css-concat

[BUGFIX] fix processing of import statements in css
use the test env
added CHANGELOG entry
[BUGFIX] fix detection of static files to allow periods in urls
Merge pull request #1399 from joostdevries/allow-periods-in-url

[BUGFIX] fix detection of static files to allow periods in urls
bump bower deps
Merge pull request #1401 from marcoow/use-test-env

Use the test env
Addons now autoload folders in the treeFor hook with the same name if no ember-addon + main file is specified. They can also export an object instead of a function that will be extended off of the Addon constructor.