fixed #35
Various fixes and improvements.
Merge pull request #36 from dwelch91/master

Fix for sslopt and some other improvements
- prepare for 0.12.0
- abolish _SSLSocketWrapper
- fixed #32 Keepalive / ping ?
- fixed #42
- fixed #38
  - show error log if a error occurs.
- refs #38
  - print stacktrace if the logging level is debug
- fixed #42
- fixed #40
  - if timeouted, raise WebSocketTimeoutException for ws/wss.
- fixed #44
Keep try tight and catch more accurately
Buffer packets from the lower layer during recv
Buffer frame parts while building up the frame
Add tests for testing timeout behaviour
fix for ssl unavialable environmnet
Add tests for message fragmentation
Merge pull request #50 from mjhanninen/mjh/test-fragmentation

Add tests for message fragmentation
fixed #43