Backbone/D3 updates
D3.Selection update
Merge branch 'master' of https://github.com/cymtec/DefinitelyTyped

Conflicts:
	d3/d3.d.ts
Merge remote-tracking branch 'remotes/original/master'
Merge branch 'master' into extensions

Conflicts:
	backbone/backbone.d.ts
	d3/d3.d.ts