feat(grunt): Ports Inject's grunt tooling to Atomic

To create consistency between projects, this brings over some planned
tooling for the Inject framework. Specifically, it adds the following
features to grunt:

bumpversion: able to auto-increment versions in package/bower json files
changelog: generate CHANGELOG.md based on commits

Additionally, this consistently generates a dist/recent and will optionally
create dist/atomic-* when triggered using grunt:release
Merge remote-tracking branch 'origin/master'

* origin/master:
  Update loader compat files to remove uneeded Atomic.init and AMD definition