packaging: default rpm packaging to build complete feature set

executing rpmbuild -tb <tarball> should create fully functional product,
including all features and translations. so far build did not provide
extra locales available in source.

because gwt permutations takes a lot of time to be built, the following
macros were added to ease creation of partial packages:

ovirt_build_quick
	quick build, good for automation, no GWT permutations, no
	locales.

ovirt_build_minimal
	minimal build, good for development, only firefox support, no
	locales.

ovirt_build_gwt
	build gwt components, default yes.

ovirt_build_locales
	build locales, default yes.

example:
	rpmbuild --define="ovirt_build_minimal 1" -tb <tarball>

Change-Id: I4fb610db6c6b6f9b209c816609613e47d7520baf
Signed-off-by: Alon Bar-Lev <alonbl@redhat.com>