Merge pull request #264 from hseeberger/master

io: stop TcpConnection on handler termination (closes #261)
io: small improvement in TcpConnection
io: TcpConnection: forward received data to handler immediately without concatenating buffers
docs: improve reference text from TimeTrade with official statement
httpx: make `response` member visible in UnsuccessfulResponseException
io: catch CancelledKeyExceptions in SelectionHandler
http: add missing parsing rules for Location header model
io: upgrade akka.io to latest Akka 2.2 master
Stop TcpConnection on handler termination (closes #261)
io: small improvement in TcpConnection
sbt: upgrade to SBT 0.12.3
docs: update references page with quote from nokta