install-config が Install.pl の prefix オプションに対応していなかったので修正
rename completion file bash to zsh
git-hooks on ci 時に実行権を追加
change path to gitconfig to .bashrc
rewrote by some comments
setup/teardown for dispatcher not to install normally pass
use default value unless not set in environment variable GIT_HOOKS_HOME.
use value from config as default value in GIT_HOOKS_HOME.