修改多个插件、组件，新增框架 Demo
重写了 loadMore.js 插件
BUG 修正
文档修改
删除生成文件
Merge branch 'v0.9.0'

Conflicts:
	build/css/squirrel.css
	build/js/squirrel-core.js
	build/js/squirrel.js
	dist/css/squirrel-min.css
	dist/js/squirrel-min.js