IE10+ titlebar animation. Fixes #55.

IE9 and earlier will not support this feature because they lack the
proper CSS support.
Add karma reports (mocha and osx). Show better test results.
Add a karma watch command to package.json.
Clean up dependencies. Version to 2.0.0.
Merge pull request #61 from MessiJS/prepare-for-2oh-final

Prepare for 2.0.0 final