UserModel
修改模型，待测试。
     加入两个类库
     TODO CatsModel
Merge pull request #6 from zts1993/master

Master
CatLogic功能丰富
Merge remote-tracking branch 'origin/beta' into beta
修复Relation
上次提交对于TP3.2关联模型与多层模型理解有误，修正一下
修改一下，放假回家~~~~
Merge pull request #7 from zts1993/beta

Update