re responsive with other clients even under a KEY * against the loopback interface (antirez)
2009-06-05 Kill the background saving process before performing SHUTDOWN to avoid races (antirez)
2009-06-05 LREM now returns :0 for non existing keys (antirez)
2009-06-05 added config.h for #ifdef business isolation, added fstat64 for Mac OS X (antirez)
2009-06-04 macosx specific zmalloc.c, uses malloc_size function in order to avoid to waste memory and time to put an additional header (antirez)
2009-06-04 DEBUG OB