Log quota refresh in_use message at INFO level for logstash

Commit 5aef26496786c02a1ed324bbd2eb0b9994a2018d added the log message to
give some idea when we're unnecessarily refreshing quota usage.

Logstash only collects INFO+ level messages, so bump this to an INFO
level message so we can track gate runs to see if this is actually a
problem.

Related-Bug: #1353962

Change-Id: I60ffa9dbda22e252f290bf316fa2e472d3e92f2f
Fix pci_request_id break the upgrade from icehouse to juno

commit a8a5d44c8aca218f00649232c2b8a46aee59b77e add pci_request_id
as one item for the request_network tuple. But the icehouse code
assume only three items in the tuple.

This patch filters pci_request_id out from the tuple.

Change-Id: I991e1c68324fe92fac647583f3ec8f6aec637913
Closes-Bug: #1377447
Merge "Fix pci_request_id break the upgrade from icehouse to juno"
Merge "Log quota refresh in_use message at INFO level for logstash"