CLIP: Add support for easily expanding SRPMS for patching.
CLIP: Add support for easily expanding SRPMS for patching.

New target called "patchy" expands an existing srpm, runs rpmbuild build
prep (-bp) which expands the sources and applies all exisint patches,
then creates you and a/ and b/.  Then you go and modify b/ and make your
new additive patch :)

CXS-15

The modifications in this commit are copyrighted works of the Cubic Corporation.
(C) 2013 Cubic Corporation

tomhurd/clip,ykhodorkovskiy/clip,tomhurd/clip,quark-pat/CLIP,rprevette/clip,ykhodorkovskiy/clip,quark-pat/CLIP,rprevette/clip,quark-pat/CLIP,ykhodorkovskiy/clip,quark-pat/CLIP,rprevette/clip,tomhurd/clip,quark-pat/CLIP,tomhurd/clip,ykhodorkovskiy/clip,quark-pat/CLIP,tomhurd/clip,rprevette/clip,quark-pat/CLIP,tomhurd/clip