Julia 1.0 version

Transition to HTTP.jl over HttpServer completed.

Client and server websockets, change dependencies

If HTTP is loaded, we can now open client websockets.
Test coverage 96%.
Overhaul error handling
Revised examples
Added wiki with standard compliance check list
Browser tests are moved to test/optional
Changed rarely used fieldnames for WebSocket.
Close issues #84, #85, #91.

v0.4.0

Dropping 0.4, this version working on 0.5 / 0.6, just to get a metadata tag.
0.7 fails because of a dependency, HttpCommon.

Binary and performance tests

Tests with available browsers from this list "chrome", "firefox", "iexplore", "safari", "phantomjs".
Browser tests now occur in sequence, since httpserver sometimes do not accept incoming connections.
At the end of tests, a performance summary with regards to increasing the poor performance issue #77 later.

Testing with available browsers

Launches available browsers, tests basic open / close / text functionality.
Increases coverage to 70#. Closes #52, #29, #28, #22, #21.
More tests welcome: Ping-pong, binary, provoked errors.

Subprotocols, updated handshakes and closing

Added subprotocols
Don't call handlers with unexpected subprotocols
Improve handling of closing (updated standard)
Improve handling of sudden client disconnections
Increase test coverage to 50%

enhancement in error handling

contains #60

compat fixes

thanks @hustf