GBK encoding plugin

[akira]

GBK, as a popular encoding frequently used on Chinese text files.

This plugin add GBK supporting to open and save a GBK file with sublime text 2.

for more information, see https://github.com/akira-cn/sublime-gbk

thx~

[DumAs]

nice plugin,but still have some issues

1. tab name, long stuff
2. syntax highlight broken