Swap port from 110000 to 11211 in $wgMemCachedServers

http://linux.die.net/man/1/memcached

"...the default is port 11211."

Change-Id: I923a1b3208c2ea1f29657cc51e813c547154eb32
Merge "Swap port from 110000 to 11211 in $wgMemCachedServers"