Reduce overhead in each test case on riak_test

- not restarting after specifying admin spec
- starting riak_cs and stanchion can run in parallel with ring converge
- change ring_creation_size to 8 from default
Tie up several small regression tests to few, to avoid riak_test setup/teardown overhead
Mistakenly removed cs_631
Use unused delay
Clean up tests
fix badmatch
fix badmatch again
Merge pull request #886 from basho/feature/faster-rt

reduce overhead in each test case on riak_test

Reviewed-by: shino