屏蔽web.xml关于spring security 的filter chain 定义。
dao加入基类和测试实体并进行了基本测试。
tree base dao
base tree manager
Merge remote-tracking branch 'remotes/origin/master' into webSecurity

Conflicts:
	sampleWebApp/src/main/webapp/WEB-INF/web.xml
Merge remote-tracking branch 'remotes/origin/webSecurity'

Conflicts:
	sampleWebApp/src/main/webapp/WEB-INF/web.xml
Merge remote-tracking branch 'remotes/origin/nestTree'
Merge remote-tracking branch 'remotes/origin/master' into webSecurity

Conflicts:
	sampleWebApp/src/main/webapp/WEB-INF/web.xml
加入ztree
将module使用nestSetTree结构