cf3parse.y: make comma-after-promiser message more helpful
Add community guidelines on running unsafe tests.
contrib/cfengine.el: cleanup so complete-symbol works again
Constify Promise under OS X
Merge pull request #1204 from sigurdteigen/master

Add RingBuffer
Merge pull request #1199 from tzz/feature/clarify-comma-after-promiser-error

cf3parse.y: make comma-after-promiser message more helpful
Add RingBufferHead/Tail
Accumulate messages in PromiseLogging