added an error message if someon calls vcs_vsn_cmd("semver") to let them know to use an atom not a string
added an error message if someon calls vcs_vsn_cmd("semver") to let them know to use an atom not a string

danikp/ChicagoBoss,synlay/ChicagoBoss,ChicagoBoss/ChicagoBoss,solatis/ChicagoBoss,danikp/ChicagoBoss,aherranz/ChicagoBoss,yunkai/ChicagoBoss,aherranz/ChicagoBoss,lamptt/ChicagoBoss,7i11/ChicagoBoss,powermedia/ChicagoBoss,powermedia/ChicagoBoss,frkarl/ChicagoBoss,ChicagoBoss/ChicagoBoss,uselessd/ChicagoBoss,yunkai/ChicagoBoss,7i11/ChicagoBoss,lamptt/ChicagoBoss,uselessd/ChicagoBoss,synlay/ChicagoBoss,solatis/ChicagoBoss,frkarl/ChicagoBoss