Python 3 compatibility.
Merge branch 'master' of github.com:ContinuumIO/bokeh
fix #306
update docs and package.json to reflect removal of bower from build process
Various js build improvements:

	* separate release copy from build copying
	* suppress symlink warning
	* deploy target calls mindeploy and devdeploy

as well as doc updates to mirror changes.
add bokehjs inteface section and embed live bokehjs jsfiddle examples in dev guide
radius units should default to 'data'
update demo to have data units for radius
examples of embedded jsfiddles for glyphs
more fiddle examples for docs
all glyphs have fiddle examples except image glyphs
bump docs version number and release notes
remove grunt-symlink code
fix #164
Don't special-case ColumnDataSource in glyph.coffee
Remove ObjectArrayDataSource from bokehjs