Pull 7ae8711 from websockify.

Pull from websockify 247b74950d.

This addresses issue #65:
https://github.com/kanaka/noVNC/issues/65

When tightPNG encoded rects were received, any fill types were
immediately drawn to the canvas while images (PNG, JPEGs) were queued
for loading. This can cause screen corruption when things are changing
rapidly due to the misordering of fills vs images.

Also, remove the onload setting in each image on the queue and instead
decrease the tight image queue scanning interval (to 40ms or 25
scans per second).

For debugging issue #70: https://github.com/kanaka/noVNC/issues/70

Part of https://github.com/kanaka/noVNC/issues/69

Pull from websockify b590289de5.

Issue https://github.com/kanaka/noVNC/issues/69

Thanks https://github.com/EdSchouten for the catch.

Import from websockify 9a2b50d8.

Add support for setting the WebSocket URI path.

This change allows one to implement a single WebSockets proxy, which
multiplexes connections to different hosts.

Just have a list here without all the links.

Pull websockify 7f487fdbd.

The reocrd parameter will turn on recording of all messages sent
to and from the client. The record parameter is a file prefix. The
full file-name will be the prefix with an extension '.HANDLER_ID'
based on the handler ID.

- Update test mode calls to work with separate websock module.

- Pull in include/websock.js update 7f487fdbd from websockify.

Broadway uses noVNC keyboard/input handling. Link to it.

Fixed minor typo in util/launch.sh informational output (s/to to/to/)

s/to to/to/

Including HyBi-07 support and refactor of send/recv.

- Add conf_defaults which accepts an array of configuration
  attributes.
- Split out user configuration defaults from the actual configuration
  object.
- Add mode field and enforce read-only, write-once, read-write modes.

API changes:
    - include/canvas.js renamed to include/display.js
    - Display.rescale() method removed from API. Use Display.set_scale() instead.
    - Make logo configuration attribute of Display and display it when
      clear() is called if it is set.

API deprecations:
    - use RFB onUpdateState instead of updateState.
    - use RFB onClipboard instead of clipboardReceive.

See https://github.com/kanaka/noVNC/wiki/ModuleAPI for detailed noVNC
modules and API description.

Expand and normalize the event/callback interfaces. Standize on
"onEventName" form for callbacks.

    Callback Renames:
        - RFB updateState -> onUpdateState
        - RFB clipboardReceive -> onClipboard
        - Keyboard keyPress -> onKeyPress
        - Mouse mouseButton -> onMouseButton
        - Mouse mouseMove -> onMouseMove

    Callback Additions:
        - RFB onPasswordRequired
        - RFB onBell
        - RFB onFBUReceive
        - RFB onFBUComplete

Other:
- Add array type support to Util.conf_default()
- Removed a bunch of routines from the Display API that were just used
  internally and not actually by noVNC: flush, setFillColor,
  imageDataGet, imageDataCreate, rgbxImageData, rgbxImageFill,
  cmapImageData, cmapImageFill.
- More keyboard/mouse logging when debug turned on.
- Some JSLinting

Pull from websockify a339a4856.

Still buggy so not yet activated in the UI, but the hooks are at least
here.

Separate the links from each other so it's obvious where the links
are.

github changed something about relative links.

Derived classes will almost certainly want to make use of the raw
info.

Issue #21 - non-US key handling.

Issue #21 - non-US keyboard layouts.

The code section for tab, backspace and enter was commented out for
testing but got checked in that way. Fix that.

Requested by Alexander Larsson at Red Hat to allow incorporation of
solution into HTML5 gtk 3.0 backend.

Issue #21 - non-US keyboard layouts.

Only identify some keys as special during the keyDown event so that
when using non-US keyboards the values don't overlap with the values
for normal keys.

Some keys have to still be identified in both keyDown and keyPress
since they generate both: backspace and enter for Firefox and Opera,
tab for Opera.

Also clarify usage statement with legend height adjustment.

Remove console.log in arrays.js so that it works in firefox without
firebug.