Merge from dev-0.30.

Squashed commit of the following:

commit f3a012eb86702297ac06c9ae7c3da6a2eae41136
Author: David Steele <david@pgmasters.net>
Date:   Wed Oct 1 19:05:57 2014 -0400

    Fixed an issue where archive-get was not returning 1 if the archive directory did not exist.  This happens when it is trying to retrieve archive log 00 and that has not been pushed from the master yet.