Merge branch 'stable-3.1'
* stable-3.1:
Revert "Log matched issues at fine level to aid debugging"
Extend CommitMessageFetcher to handle non-commit objects
Fix typo in documentation RevUpdatedEvents -> RefUpdatedEvents
Check if approvals array is null before iterating
Log matched issues at fine level to aid debugging
Switch from deprecated SoyTofu to current SoySauce
Avoid NPE in AddSoyComment if no template file given
Add test for AddSoyComment
Allow to log rendered Soy templates
Switch to Flogger
Document default implementations in ItsFacade
Fix parameter specification for Soy template example
Drop 'autoescape' from Soy template example
Mute warning when actions config file is missing
Change-Id: Ibaa429fb95f0b0ebeec795cb92f59a8d79fd6b99
