Deploy log and summary on nodes

22:26:54 @elijah yes, it would be good to have a deploy log on each node
22:27:23 @elijah i would like both a /var/log/leap-brief.log and a /var/log/leap-full.log
22:27:53 @elijah with brief just containing one line for each deploy (who, what version, when)
22:28:06 @elijah and successful or not
22:49:12 varac ah, you filed it under "Report Issues"
22:52:07 varac ok, i agree, i would call the first file leap-summary.log instead of leap-brief.log

(from redmine: created on 2014-09-03, closed on 2015-02-10)