Refactor how settings are passed around.

Use getaddrinfo instead of gethostbyname.

This allows forwarding from an external port to the same port on
localhost (loopback). I.e.

./utils/wsproxy `hostname -f`:5901 localhost:5901

Some default_controls.js jslinting.

Needs to be some modularity between controls you probably always want
(like sending CtrlAltDel) and how the interface is presented and
controlled.

Some basic functions from mootools implemented in util.js.

Also, some more DOM separation. Move clipboard focus logic into
default_controls and canvas and out of vnc.js.

JSLint cleanup.

On path towards removing dependency on mootools in non-UI code.

Also, allow 'include/' to be overridden in VNC_uri_prefix.

Also, move Frame Buffer Update code out of normal_msg into separate
function.

- Implement resizing of desktop pseudo-encoding.

- Also send lowest (fastest) compression level pseudo-encoding.
  Ought be user tweakable.

When extracting the data URI info, much more efficient in firefox to
iterate and push onto an array, then to generate the whole array at
once using the map function.

Chrome is mostly unaffected by this change (might be slightly better).

Also, generate encodings array to send from a list of encodings
instead of being hardcoded generator function.

Also, slightly faster non-base64 (UTF-8) decode.

No sequence numbering and only support b64encoding at the moment.

From kevinychan/vnc-html5 ebfffdc36.