remove positioning from shape (not genderal properties)
api update
dev
merged
parent spec fix
Merge branch 'dev' of github.com:kitygraph/kitygraph into dev
class.js
Pen become a seal class
用例补全
Merge remote-tracking branch 'jm/dev' into dev
Merge branch 'dev' of github.com:HanCong03/kitygraph into dev
spec fix
Pen Specification （draft）
Color Specification（Draft）
Line Specification（Draft）
Curve Specification（draft）
Mixin 方法的改写调用支持
Todo: Mixin 构造函数支持
Ellipse Specification (draft)
Image Specification (draft)