pass socket into connectionIssue on SERVER_ERROR
pass socket into connectionIssue on SERVER_ERROR

fixes 3rd-Eden/node-memcached#140

jolks/node-memcached,XadillaX/node-memcached,kbarbounakis/memcached,acarrasco/node-memcached,andrewbrereton/memcached,mbrukman/node-memcache-client,3rd-Eden/node-memcached,Starefossen/memcached,andrewbrereton/memcached,mrlannigan/memcached,3rd-Eden/memcached,jolks/node-memcached,mgetz/memcached,Starefossen/memcached,fouber/node-memcached,XadillaX/node-memcached,jkrems/memcached,acarrasco/node-memcached,fouber/node-memcached,mbrukman/node-memcache-client,3rd-Eden/memcached,kbarbounakis/memcached,mgetz/memcached,jkrems/memcached,3rd-Eden/node-memcached,mrlannigan/memcached