add memoized version of local-hostname in util ns
add memoized version of local-hostname in util ns

srdo/storm,adityasharad/storm,hmcc/storm,ujfjhz/storm,sakanaou/storm,knusbaum/incubator-storm,carl34/storm,erikdw/storm,kevpeek/storm,raviperi/storm,raviperi/storm,kevinconaway/storm,sakanaou/storm,ujfjhz/storm,adityasharad/storm,carl34/storm,kishorvpatil/incubator-storm,cluo512/storm,F30/storm,kamleshbhatt/storm,kamleshbhatt/storm,kevinconaway/storm,srdo/storm,pczb/storm,kamleshbhatt/storm,kevinconaway/storm,F30/storm,knusbaum/incubator-storm,srishtyagrawal/storm,F30/storm,erikdw/storm,adityasharad/storm,kamleshbhatt/storm,0x726d77/storm,kishorvpatil/incubator-storm,sakanaou/storm,carl34/storm,kevinconaway/storm,hmcc/storm,F30/storm,raviperi/storm,erikdw/storm,ujfjhz/storm,knusbaum/incubator-storm,hmcc/storm,knusbaum/incubator-storm,knusbaum/incubator-storm,kishorvpatil/incubator-storm,kevpeek/storm,kevinconaway/storm,roshannaik/storm,carl34/storm,kishorvpatil/incubator-storm,0x726d77/storm,knusbaum/incubator-storm,hmcl/storm-apache,Crim/storm,cluo512/storm,kishorvpatil/incubator-storm,srishtyagrawal/storm,Crim/storm,roshannaik/storm,cluo512/storm,hmcc/storm,raviperi/storm,kevinconaway/storm,ujfjhz/storm,adityasharad/storm,carl34/storm,ujfjhz/storm,kishorvpatil/incubator-storm,sakanaou/storm,kevpeek/storm,kevpeek/storm,hmcc/storm,roshannaik/storm,srishtyagrawal/storm,sakanaou/storm,ujfjhz/storm,F30/storm,hmcc/storm,ujfjhz/storm,Aloomaio/incubator-storm,Crim/storm,0x726d77/storm,srishtyagrawal/storm,pczb/storm,Crim/storm,roshannaik/storm,cluo512/storm,0x726d77/storm,hmcl/storm-apache,pczb/storm,adityasharad/storm,kamleshbhatt/storm,kishorvpatil/incubator-storm,pczb/storm,F30/storm,sakanaou/storm,pczb/storm,kamleshbhatt/storm,kevinconaway/storm,srishtyagrawal/storm,raviperi/storm,cluo512/storm,hmcl/storm-apache,Aloomaio/incubator-storm,hmcl/storm-apache,erikdw/storm,roshannaik/storm,Aloomaio/incubator-storm,hmcl/storm-apache,raviperi/storm,hmcl/storm-apache,srdo/storm,carl34/storm,Crim/storm,roshannaik/storm,pczb/storm,pczb/storm,sakanaou/storm,srdo/storm,carl34/storm,hmcc/storm,cluo512/storm,srdo/storm,erikdw/storm,cluo512/storm,erikdw/storm,kamleshbhatt/storm,0x726d77/storm,0x726d77/storm,Aloomaio/incubator-storm,roshannaik/storm,kevpeek/storm,adityasharad/storm,hmcl/storm-apache,raviperi/storm,Crim/storm,srishtyagrawal/storm,0x726d77/storm,kevpeek/storm,erikdw/storm,srdo/storm,adityasharad/storm,srishtyagrawal/storm,Crim/storm,F30/storm,Aloomaio/incubator-storm,Aloomaio/incubator-storm,kevpeek/storm,Aloomaio/incubator-storm,srdo/storm,knusbaum/incubator-storm