Less CSS 2.0.0-b2 发布，此版本现已提供下载，更新内容如下：
Imports are now sequenced and so are consistent (previously some complex projects might end up with occasional different orderings)
Imports with variables are better supported - variables can be specified in sub imports
Support for rebeccapurple
Browser can now accept options as attributes on the script tag and the link tags e.g.
