First round patch to enable memcached publishing using libmemcached.
Fix memcached dependent build for gmetad.
Merge remote-tracking branch 'upstream/master' into memcached-publish
Support for memcached pushing metric expiry, if dmax != 0.
Cluster in memcached key name, parameter documentation, better debug support.
Merge pull request #78 from jbuchbinder/memcached-publish

Memcached publish support