The memcache configuration was only setup for the proxy-server.conf
within Swift, and was not set for the object and container reconcilers
which both use memcache.
This patch moves the memcache settings into a separate memcache.conf
file which is then configured on all swift hosts, removing the specific
conf from the proxy-server.conf file.
Change-Id: I047b2d1178de43c694c30280f6ed9fe8511341fd
Closes-Bug: #1542121