Merge remote-tracking branch 'upstream/master'

Conflicts:
	README.md

Building latest which includes the new tooltip code.

Manually applying pull request novus#292, this fixes novus#291

Merge branch 'master' into massive-merge

Conflicts:
	README.md

Changing nv.dev to equal false.

Rewording the community message on readme

build 1.7.0

Bump version to 1.6.0, we reformatted all the code, made a lot of bug…

… fixes and added a lot of features to the pie/donut charts. Seems like a good time to baseline at a higher version.

Merge branch 'gh-pages'

Inject version everywhere from single place in grunt file.