Go语言开发工具 LiteIDE x21 发布

### 2014.03.06 Ver x21

* LiteIDE

    * fast highlighter for MacOS X 10.9

    * fast expression lookup F1/F2

    * cancel x20 always open in new window mode.    

    * add new JsonEdit plugin.

    * add reload/close dialog YesToAll, if modified on the drive.

    * add auto reload files option, if modified on the drive.

    * add store setting to local ini file option.

    * fix folder expand state

    * fix for case sensitive path comparison on windows

    * fix memory leak

* LiteBuild

    * add golint support

* LiteEnv

    * recreate system.env

* LiteEditor

    * new color scheme gist-github (thanks William Kennedy <bill@ardanstudios.com>)

    * fix if/else syntax fold

* GolangAst

    * add type factor to funcs folder

    * add type const

    * add import symbol, and view document menu

    * add context menu

    * add symbol extra info        

* GolangFmt

    * fix timeout

    * fix GOPATH

* GolangDoc

    * fast expression lookup F1/F2