fix not working admin_auth_enabled=false on stats request.
add riak_test for admin_auth_enabled.
refactor admin authentication on users & stats wm resources.
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
change usage's query string to enlarge coverage on admin bypass test per review.
Merge pull request #854 from basho/bugfix/cs719-fix-admin-auth-enabled-on-stats

Fix not working admin_auth_enabled=false on stats request.

Reviewed-by: kuenishi
Add adapters to switch single/multi bag configuration
Add Bag ID to bucket object
Bag-wise pool support for object manipulation
Make storage calculation look into buckets' bag IDs
Refactor riak_test
WIP: GC of multiple pools
Call master bag instead of default bag
Fix bug when no block server can start