Add hide_console patch
1. Add hide_console patch from wyw.dcweb.cn
从 wyw.dcweb.cn 添加隐藏命令行窗口的补丁
2. Add powerword patch and propotional fonts patch
增加金山词霸取词补丁和非等宽字符补丁
See http://xbeta.info/gvim-powerword-ciba.htm
3. Add build.bat to invoke nmake
增加 build.bat 以调用 nmake