Depend on Webbit 0.4.15
Update IDEA project files
Update tests for Webbit 0.4.15
Wait for SSE server to start

.start() in recent Webbit releases returns a future.
Make sure we flush the channel after writing
Make sure [TCP] connections have a timeout
Spam
Make test client print exception stack traces
Change project code style to be 4 spaces
Update readyState when the source is open and closed
Type parameter for SimpleChannelInboundHandler should be String

Since we insert a line decoder before the handler in the pipeline.
Make sure tests finish running by not waiting for server shutdown
Lower connection timeout to 5s
EventSourceChannelHandler is not actually sharable
Propagate connection failures to onError
Remove an unused import
Merge branch 'master' into ab-netty5