Modify keyhac_config.py

* "if 1:" は不要な気がしたので削除
* その他 調整
Add settings for golang

* $GOROOT
* $GOPATH
* $PATH
Rename vimperator directory from "vimperator" to ".vimperator"
Change font in vim
Modify .gitignore
Add shell script to install Vim syntax file for Vimperator