Added vows dependency for testing
added missing semicolons
added test setup and first test
added unit tests for vg.array
simplified test cases
added unit tests for vq.unique
added unit tests for vg.keys (copied from d3 unit test for d3.keys)
improved test descriptions by including 'should'
added unit tests for vg.values
Add explicit import of d3.
Add npmignore.
added unit tests for vg.str
Merge pull request #18 from timelyportfolio/master

very unimportant correction of George Washington date of death in lifelines.json spec
Merge remote-tracking branch 'remotes/upstream/master'
added webstorm cfg directory to .gitignore
Fix canvas render bug.
Invoke hover/update only as needed.
inject d3 dependency
Add formula transform.
improved test cases for vg.str