fixes to installer script
fixes to installer script

AlexHopsworks/karamel-chef_dela,SirOibaf/karamel-chef,SirOibaf/karamel-chef,hopshadoop/karamel-chef,SirOibaf/karamel-chef,hopshadoop/karamel-chef,AlexHopsworks/karamel-chef_dela,SirOibaf/karamel-chef,hopshadoop/karamel-chef,AlexHopsworks/karamel-chef_dela,AlexHopsworks/karamel-chef_dela,hopshadoop/karamel-chef