ansible/ansible — pull request #6028 by cove (2014-02-16 07:12:46+00:00)
Title: yum module downgrade support

Allows the yum module to downgrade an RPM if it's older than the currently installed version.

Ref thread:
https://groups.google.com/forum/#!searchin/ansible-project/yum$20downgrade/ansible-project/P_Rp4fVJYHk/ZettkjxKBlcJ