Add comments about Stream.close_connection()'s behavior

Release note: n/a

R=hiroshige@chromium.org

Review URL: https://codereview.appspot.com/170050043

git-svn-id: http://pywebsocket.googlecode.com/svn/trunk@858 4ff78f4a-9131-11de-b045-6380ec9940d4
Update expectation for permessage-deflate compression result for empty payload

It seems newer zlib library omits unnecessary compressed block and just puts
uncompressed block for empty input.

Release note: n/a

R=yhirano@chromium.org

Review URL: https://codereview.appspot.com/179880043

git-svn-id: http://pywebsocket.googlecode.com/svn/trunk@859 4ff78f4a-9131-11de-b045-6380ec9940d4
Remove permessage-compress extension support

Release note: Remove permessage-compress extension support

R=yhirano@chromium.org

Review URL: https://codereview.appspot.com/166260043

git-svn-id: http://pywebsocket.googlecode.com/svn/trunk@860 4ff78f4a-9131-11de-b045-6380ec9940d4