add pkglist and template for fedora21 ppc64le
Merge branch '2.9' of ssh://git.code.sf.net/p/xcat/xcat-core into 2.9
fix defect #4481 netmask being picked up from active MN instead of Networks table
bug 4469: add the check for ppc64le arch in pre.rh.rhel7
fix for bug 4472: copycds should not change ppc.* to ppc64