首页的架构预览和导出
拖放隐藏内网外网
首页的 3D 列表手势支持，禁用长按
Merge branch 'dev' of https://github.com/lvlx/zhuyun into ipad1
添加架构的get方法
限制最多保存架构数
Merge branch 'ipad1' of https://github.com/lln7777/zhuyun into enhance

Conflicts:
	models/Struct.coffee
	models/Struct.js
	routes/struct.coffee
	routes/struct.js
Merge branch 'enhance' into dev