Merge PR #23718 into master

Merge PR #23718 into master

* refs/pull/23718/head:
	cleanup: Replace always-false assertions with abort
	include/assert: Smarten up ceph_assert
	common: Call ceph_abort(), not abort()
	include,common: Remove assert and clobber-foo
	rbd_replay: Use ceph_assert for asserts.
	rbd_fuse: Use ceph_assert for asserts.
	osdc: Use ceph_assert for asserts.
	osd: Use ceph_assert for asserts.
	msg: Use ceph_assert for asserts.
	mgr: Use ceph_assert for asserts.
	messages: Use ceph_assert for asserts.
	mds: Use ceph_assert for asserts.
	log: Use ceph_assert for asserts.
	libradosstriper: Use ceph_assert for asserts.
	librados: Use ceph_assert for asserts.
	kv: Use ceph_assert for asserts.
	test: Use ceph_assert for asserts.
	key_value_store: Use ceph_assert for asserts.
	json_spirit: Use ceph_assert for asserts.
	journal: Use ceph_assert for asserts.
	global: Use ceph_assert for asserts.
	erasure-code: Use ceph_assert for asserts.
	rbd: Use ceph_assert for asserts.
	tools: Use ceph_assert for asserts.
	rgw: Use ceph_assert for asserts.
	mon: Use ceph_assert for asserts.
	crush: Use ceph_assert for asserts in C++ code.
	crimson: Use ceph_assert for asserts.
	compressor: Use ceph_assert for asserts.
	cls: Use ceph_assert for asserts.
	client: Use ceph_assert for asserts.
	auth: Use ceph_assert for asserts
	os: Use ceph_assert for asserts
	common: Use ceph_assert for asserts
	include: Use ceph_assert for asserts
	include/assert: Deprecate assert macro

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>