Added diffs from refactor.
nvd3Dev: Applied straightforward diff patches
nvd3Dev: legend.js
Merge pull request #7 from kashesandr/multiBar-multiBarChart/canvas

multiBar & multiBarChart
Merged all the #development changes in.
Merge branch 'canvas' of github.com:DavidSouther/nvd3 into canvas

Conflicts:
	src/models/bar/multi/multiBar.js
	src/models/bar/multi/multiBarChart.js
built
Fixed up some bugs found in aloha.
Added renderEnd
built
Several bug fixes.
built
multiBar & multiBarChart small fixes