Set kombu_reconnect_delay for heat and ceilometer

depends on:
https://gerrit.mirantis.com/#/c/16139/
https://gerrit.mirantis.com/#/c/16140/

but can be safely merged (the option will be ignored)

Change-Id: I8a39c8dc06336dd3d789872dbf340ba4e8712ad2
Closes-Bug: #1290468
Merge "Set kombu_reconnect_delay for heat and ceilometer" into stable/4.1