func GetHead() (ref string, err error) {
	d, err := ioutil.ReadFile(UGIT_DIR + "/" + HEAD_PATH)
	ref = string(d)
	return ref, err
}
/*
GetHead return a reference the HEAD file
*/
GetHead return a reference the HEAD file
/ * GetHead return a reference the HEAD file * /
func GetHead() (ref string, err error) {
	d, err := ioutil.ReadFile(UGIT_DIR + "/" + HEAD_PATH)
	ref = string(d)
	return ref, err
}
func GetHead ( ) ( ref string , err error ) { d , err := ioutil . ReadFile ( UGIT_DIR + " " + HEAD_PATH ) ref = string ( d ) return ref , err }
GetHead return a reference the HEAD file
GetHead return a reference the HEAD file