fix for bug 4422: fix the ubuntu template problem with x86_64 kvm virtual machnes
fix bug 4410: Command genimage failed on Ubuntu 14.04.1 ppc64el
defect 4375: fix the xcatd which has issue to receive request from xcatd which is longer than about 160,000 bytes
defect 4419: change the db notification runs in DB process instead of fork a new one since the fork new process will cause DBI connection gets into confusing
fix bug 4411: Typo in the command genimage output, "geniamge" -> "genimage"