Fix for bytestrings in Tornado client.

Tornado iostream uses bytes, rather than str.
Fix typo in 'ws4y.websocket'
Merge pull request #89 from jodal/fix-ws4y-typo

Fix typo in 'ws4y.websocket'
Fix #87
Fix #86
Fix #90
Follow up to #90
Hopefully this will catch most of the use cases where a write operation is attempted after the connection was closed #73
Fix #73 client side. Damn it I forgot it earlier
Fixed a couple of typos in the docs
Merge pull request #92 from rakiru/patch-1

Fixed a couple of typos in the docs
correcting old function call in built-in client tutorial
added support for client certificates and other options to ssl.wrap_socket()
Merge pull request #98 from EliAndrewC/master

ws4py.client classes should support client certificates
making sure the strings are encoded
Hopefully implements properly Unix-domain socket support and fixes #76
trying to improve our gevent api to support chaussette's usage
Merge pull request #96 from elmiko/master

Code correction in built-in client tutorial
a little more tests
updated requirements so that we use the most recent libs