patch: added font weight property
Merge pull request #16 from bigomega/master

Add font weight property.
Working prototype of placing DOM for word instead of canvas
Use top baseline instead of unpredictable alphabetic baseline
Have the lib take multiple div/canvas elements
Documentation
Use textBaseline middle to workaround different browser default
Work with miniumFontSize
Merge branch 'master' into dom

Conflicts:
	src/wordcloud2.js
Merge branch 'dom'