related to issue #489, make sure that when the brush is deselected it turns off
fixing tests
bubble overlay chart spec has a test which generates wildly different
values in different platforms
Finished converting bubble overlay chart test to spec
Fixed linting issue with bubble-overlay-spec
modify order of vows tests to allow passage

for whatever reason, one of the "real" (non-env) tests
needs to be first, otherwise it tries to load env-data before
env
artifact
add deregister ability
Move fix from dc.js to core.js. grunt test now creates the files appropriately
implement change to core.js, add jasmine spec test
eliminate tabs and trailing whitespace
artifacts
add author
rearrange sections; add coding conventions section; formatting
Specify latest 1.x of crossfilter and latest 3.x of d3 for bower

fixes #518
upgrade grunt-docco2
Merge pull request #515
decommission obsolete spy
Initial pass at converting row chart test to spec
Finished coverting row chart test to spec