Merge pull request #14 from cowboy129/master

make dependency scope of specs2 as test
Added sbt-scalariform plugin.
Added factory method props for Props of actors.
stash messages while we're waiting for the connection to be upgraded
Merge pull request #15 from nefilim/master

stash messages while we're waiting for the connection to be upgraded
Added helper methods: send(Frame) and send(FrameStream).
Added exmaple code for send(Frame) method.
explicitly handle failure to connect
Merge pull request #18 from nefilim/master

WebSocketClientConnection should explicitly handle failure to connect
add .travis.yml for ci