Ticket #47409 - allow setting db deadlock rejection policy
https://fedorahosted.org/389/ticket/47409
Reviewed by: nhosoi (Thanks!)
Branch: master
Fix Description: Forgot to add flags parameter to last commit.
Platforms tested: RHEL6 x86_64
Flag Day: no
Doc impact: yes - document new config parameter
(cherry picked from commit 67cbb2eac1300ae57acf75f4c3299103046a3323)