Fix up common_intstall to ensure that the install scripts are actaulyl executable.
Fix up common_intstall to ensure that the install scripts are actaulyl executable.

crowbar/crowbar,MaximilianMeister/crowbar,nkrinner/crowbar,dirkmueller/crowbar,rsalevsky/crowbar,aspiers/crowbar,aplanas/crowbar,rhafer/crowbar,SUSE-Cloud/crowbar,tserong/crowbar,vwallfahrer/crowbar,rsalevsky/crowbar,crowbar/crowbar,vwallfahrer/crowbar,toabctl/crowbar,toabctl/crowbar,SUSE-Cloud/crowbar,tserong/crowbar,dirkmueller/crowbar,rhafer/crowbar,mmnelemane/crowbar,mmnelemane/crowbar,aspiers/crowbar,rhafer/crowbar,nkrinner/crowbar,aplanas/crowbar,MaximilianMeister/crowbar