dont cause internal errors to close the connection
dont cause internal errors to close the connection

If reading a frame from a framer returns an error it is returned
out to recv() which will close the connection and cancel all
inflight requests. Some errors are not fatal for all requests so
only return this erorr out for net errors.

mailgun/gocql,tempbottle/gocql,Zariel/gocql,lytics/gocql,i/gocql,matope/gocql,brandscreen/gocql,nikandfor/gocql,kelwang/gocql,kelwang/gocql,vrischmann/gocql,aai/gocql,gocql/gocql,gcnonato/gocql,retailnext/gocql,gcnonato/gocql,brandscreen/gocql,ChannelMeter/gocql,adamweiner/gocql,lytics/gocql,hackintoshrao/gocql,gus/gocql,vrischmann/gocql,brandscreen/gocql,i/gocql,retailnext/gocql,tempbottle/gocql,relops/gocql,aai/gocql,kelwang/gocql,revinate/gocql,retailnext/gocql,znly/gocql,nikandfor/gocql,matope/gocql,lytics/gocql,relops/gocql,adamweiner/gocql,hackintoshrao/gocql,relops/gocql,gocql/gocql,gcnonato/gocql,tempbottle/gocql,Zariel/gocql,CrowdSurge/gocql,ChannelMeter/gocql,matope/gocql,gus/gocql,CrowdSurge/gocql,znly/gocql,revinate/gocql,hackintoshrao/gocql,nikandfor/gocql,mondough/gocql,mondough/gocql,adamweiner/gocql,mondough/gocql,mailgun/gocql