housekeeping: improving directory structure, adding license where missing
Merge branch 'master' into jebeck/cbg-tooltips
Merge branch 'master' into jebeck/cbg-tooltips

Conflicts:
	js/index.js
housekeeping: a bit of reorganization, renaming, license-adding
make bgboundaryclass utility work for CBGs too
working cbg tooltips with varying orientation (high vs. others), but not yet text or orientation variation at edges of viz
add variable orientation at edges of viz
Merge branch 'master' into jebeck/cbg-tooltips
add the text of the cbg value to the tooltips
get viz tests to pass
add license
update README to describe new modules
Merge branch 'master' into jebeck/cbg-tooltips
move radius into opts
Merge branch 'master' into jebeck/cbg-tooltips
Merge branch 'master' into jebeck/cbg-tooltips
Merge pull request #155 from tidepool-org/jebeck/cbg-tooltips

native cbg tooltips