Refs #851:much proper garb start/stop function return code

git-svn-id: https://devel.codership.com/svn/galera/branches/yan@3538 9148e567-b586-4176-b9b8-4e36cb4ec61b
refs #30 - removed invalid row count check, cleaned up logging
Merge branch '2.x' of github.com:codership/galera into 2.x
Merge branch '2.x' into 3.x