removed self
getter/setters don't need to check for undefined, that's handled by the config parser
マップ
use util.createID()
cleaning up coding style
_private functies
Merge branch 'master' of github.com:stvno/d3.mappu

Conflicts:
	dist/d3.mappu.js
	dist/d3.mappu.min.js
	src/map/d3.mappu.Map.js
cleaning up
added some questions