Merge pull request #8 from cowboy129/master

copy SslTlsSupportSpec from spray.io
Merge pull request #9 from cowboy129/master

add test case for writing multiple frames at the same time
Auto pong incoming ping at WebSocketFrondend stage directly.
spray-testkit could be in test scope only.
Properly handle WriteChunkAct for multiple incoming data by tracking a
pendingSendAck number.
Added autobahn test reports.
typo.
Moved WebSocketFrontend to package spray.can/websocket
run both basic and ssl tests in UHttpTest