added Nagios to list of notifiers in DSL constants
added Nagios to list of notifiers in DSL constants

skcript/backup,scalp42/backup,backup/backup,tian-xiaobo/backup,hiphapis/backup,interu/backup,zBMNForks/backup,interu/backup,scalp42/backup,ccoenen/backup,ccoenen/backup,zBMNForks/backup,hiphapis/backup,McStork/backup,pawelduda/backup,skcript/backup,otzy007/backup,McStork/backup,rics3n/backup,interu/backup,pollosp/backup,tian-xiaobo/backup,backup/backup,zires/backup,hiphapis/backup,scalp42/backup,pollosp/backup,otzy007/backup,bernd/backup,zires/backup,pollosp/backup,bernd/backup,pawelduda/backup,reedloden/backup,zires/backup,tian-xiaobo/backup,rics3n/backup,martincik/backup,otzy007/backup,martincik/backup,reedloden/backup,zBMNForks/backup,rics3n/backup,martincik/backup,skcript/backup,McStork/backup,pawelduda/backup,backup/backup,reedloden/backup,ccoenen/backup