Cherrypick of 07dfdd2b6936348cbedcbd39432eeb3c5f5f0116
Cherrypick of aaf2ad1c0a05cb73ae0f00c5b29eef0f28b60dc4
Remove more references to lowlevel
Merge git://hg/carbon/trunk-ring3/xen-api-libs-specs

Conflicts:
	conf.json
	ocaml-xen-api-libs-transitional.spec.in
	ocaml-xen-lowlevel-libs.spec.in