The InnoDB DeadlockChecker::check_and_resolve() was missing a
call to wsrep_handle_SR_rollback() in the case when the
transaction running deadlock detection was chosen as victim.

Refined wsrep_handle_SR_rollback() to skip store_globals() calls
if the transaction was BF aborting itself.

Made mysql-wsrep-features#165 more deterministic by waiting until
the update is in progress before sending next update.