handle tomstone, writing manifests with undefined props (c.f. #840)

Conflicts:
	dialyzer.ignore-warnings
	riak_test/src/rtcs.erl
	src/riak_cs_utils.erl
	xref.ignore-warnings
minor commentary fix
change BUCKET7 test handling, not using siblings
strange character
md5 functions for R16
dialyzer ignore file update
Merge pull request #865 from basho/bugfix/cs840-fix-calc-develop

Bugfix/cs840 fix calc develop

Reviewed-by: shino