Merge pull request #1 from RubyLouvre/master

merge from RubyLouvre/avalon
Merge pull request #2 from RubyLouvre/master

merge from master
升级avalon修复:

1.IE6－8 proxy对param赋值类型为vm时报错
2.删除proxy时未删除绑定的subscribers
升级getEachProxy，处理proxy[param]为vm的情况。升级recycleEachProxy方法，回收subscribers。
Merge pull request #402 from ilife5/base

升级getEachProxy，处理proxy[param]为vm的情况。升级recycleEachProxy方法，回收subscribers。