Fix nova flag API change

Remove old flagfile support

default_flagfile has been removed from the nova trunk in favour of .ini files (https://github.com/openstack/nova/commit/7e3e9b8e9cea4f1bf78d127ffb915b79c854fdbe)

This will keep copyrect rendering actions in order with tight and tightPNG
rendering actions (otherwise you can get visual image corruption when
they are mixed together).

Warning:

RAW, RRE and HEXTILE still use immediate render commands so there is
still the risk of out-of-order rendering if RAW, RRE, and HEXTILE are
mixed with tight and tightPNG. Copyrect will work with either because
the renderQ_push function will render copyrects immediately if they
are the only thing being pushed on the queue.

The imgQ code in RFB should be a generic rendering queue system in
Display.

The reason for the render queue in the first place is that images
loaded from raw data URI strings aren't immediately ready to display
so we have to wait for them to complete 'loading'. However, when data
URI images are mixed with other types of rendering actions then things
can get out of order. This is the reason for the rendering queue.

Currently this only keeps display actions for tight and tightPNG
related actions in order (because they use a mix of fills, raw pixel
data and data URI images).

This related to https://github.com/kanaka/noVNC/issues/145

The real fix is to QEMU so that this doesn't happen which was
submitted as a patch to the mailinglist right before this.

- Also add docs/release.txt instruction file.

Fixes https://github.com/kanaka/noVNC/issues/163

When using an encoding with raw images (tight, tightPNG) we need to
draw those image relative to the viewport so that clipping works when
the viewport isn't at 0, 0.

RealVNC 4.6 Mac Support.

Fix python 2.4 CClose exception handling.

Fix rpc initialization issue

 * rpc flags now must be manually initialized.

Unfortunately the values for those duplicate keys are not the same and
I'm not sure which ones are more correct. However, for now, I've
commented out the second occurrence.

This data is generated from /usr/include/X11/keysymdef.h using the
utils/u2x11 script.

The close event will also fire so trying to fail the connection twice
is unhelpful and hiding status information.

Update README.md to add Foreman project

  *  Don't clobber default host/port

 * Adds the nova-novncproxy binary, to provide support for vnc + OpensStack nova
 * Adds the ability to pass an auth token in via url, which is subsequently
   passed back to the proxy as a cookie.

https://github.com/kanaka/noVNC/issues/58

Thanks for catching this: https://github.com/abligh

May window managers have a keyboard shortcut that switch away from the
current desktop (e.g. desktop switcher). Unfortunately, when this
happens, the meta/control keys that are used with the shortcut will
send a down event to the browser, but the up event will never be sent
because the browser no longer has focus at the point when the up event
happens. This can cause weird stuck key issues for VNC clients (not
just noVNC). To get around this, we try and detect when the browser
loses focus and release any keys that are on the keyDownList.

As an aside, if you run into this situation (in noVNC or another VNC
client), you can unstick the state by pressing and releasing the Ctrl,
Shift, Alt, etc.

Addresses: https://github.com/kanaka/noVNC/pull/135

Mostly duplicate code so merge it and wrap with closures that pass in
the isTightPNG parameter.

Still detect and error if copy/filter when tightPNG.

With last_rect, the rects count can be high until a last_rect
pseudo-encoding is received which messes with the timing stats. So
count up the number of pixels rendered and show timing after the pixel
count reaches the width*height of the screen.