use autobahn echo server and not echo.websocket.org
add temp prints to figure out what happens on travis
return empty table on upgrade parse error
fix server close args
add temp prints to figure out what happens on travis
add temp prints to figure out what happens on travis
remove unnec. pcall
remove debug prints
dont cleanup socket on (re-) connect error
fix receive return codes on sock err, don't close again on multiple call to close
add broadcast test
some more tests and fixes for corner cases
fix and test premature copas socket:close
Merge pull request #21 from lipp/more-tests

More tests