fan in writeFrameInternal

Merge pull request xtaci#43 from jannson/fix-keepalive-block

fix: writeFrame may block forever in keepalive function

Merge pull request xtaci#43 from jannson/fix-keepalive-block

fix: writeFrame may block forever in keepalive function

Merge pull request xtaci#43 from jannson/fix-keepalive-block

fix: writeFrame may block forever in keepalive function

Merge pull request xtaci#40 from CovenantSQL/master

Expose Stream.die via Stream.GetDieCh for canceling running golang RPC func

Merge pull request xtaci#27 from longzhiri/master

fix bug: read 0 bytes from a stream will block forever

adjust read after close behavior xtaci#23

simplify returnToken

Merge pull request xtaci#8 from getlantern/master

Fixed deadlock on concurrent closing

reduce memory footprint