32 bits are not enough to keep track of all the pixels that might
flow through the system. Expand things to 64 bits, which should cover
all reasonable uses.

There is a range of key codes that are never sent by a real keyboard
and are therefore used by layouts to hide "fake" mappings. Make sure
to only use these as a fallback as some applications get confused
when they see these codes.

Use cmake TIMESTAMP function

It now accepts this parameter, so make sure it is documented.

We disabled it in 0a0e582 since it didn't have support for resizing.
But it got that support in 242c5b2, yet we forgot to allow this
setting again.

We need to check earlier if we are going to send this refresh or
not. Otherwise we send out pings pointlessly, and we also stall
the request loop with a client as we clear the requested region
without actually sending an update message.

It makes the logic a bit easier to follow, and also fixes the
case where just a fake update is needed.

Fallout from beb59a43.

We need a larger range to handle the temporary overflow caused by
the Floyd-Steinberg dithering.

The debug builds do extra check, so chose that mode for Travis so we
get early warnings for problems.

because it is not only platform independent
but also allows to override the build date
This helps to make tigervnc builds reproducible

See https://reproducible-builds.org/ for why this is good

Also adds UTC flag, to be independent of timezone.
Also changes JAVA_DATE format to ISO-8601 date format.

Requires cmake-2.8.11+ from 2013

Logging revealed that a few empty damage regions are emitted on startup. Those don't need to be rendered to the Surface pixmap.

The Pixmap is filled in as updates from the server arrive. Before the first full update, it would contain undefined contents, which would be rendered onto the ViewPort.
Clearing the Pixmap is only done on startup and when changing the server resolution, so it's not performance critical.

It doesn't belong on each socket server object as timers are global.
Force implementations to call the Timer system directly instead,
avoiding any middle men.

Get this timeout in to the timer system as well to make things
simpler and more robust.

Do a proper cleanup when one of the termination timeouts trigger
rather than just exiting on the spot. This makes sure we don't leave
stray stuff around, e.g. unix socket files.

This makes them more consistent with everything else, which makes
things clearer and also allows them to handle some corner cases
(e.g. only firing once).

Add missing comments and clearly separate methods from attributes.

It is an internal function so it has no business being public.
Compare with CConnection where it is already private.

It is static and only used from a single place, so let's inline it.

It isn't true so remove those comments.

Windows tries to do a copy of it, and it is too complex to survive
that. Just reference the object directly as we know the source of
the message here.

It is functionality specific to WinVNC, so move the code there
to make things more clear.

These are not allowed in C++, and have been made optional in C11.
So let's just get rid of them and any issues they may cause.

We need to test this always in order to catch Ctrl+AltGr, and to
handle release of the key properly. Hopefully there isn't any other
case where VK_MENU is sent without a scan code.

We might have an offset in the area of the screen we're tracking,
so make sure that offset is included in the changes we report.

This makes VNCServer a sufficiently complete interface that callers
don't need to know about the specific implementation (VNCServerST
currently). And assuming that all servers will use sockets is not
that outrageous.

Removed the last parts of VNCSConnectionST's back door in to
VNCServerST and let the parent class fully handle coordination of
clients, and access to the desktop.

Our XRender code assumes a certain pixel layout which was not
guaranteed on big endian systems. The previous workaround only worked
for some cases, so fix this properly now.

Must be done in order to remove UNIX sockets etc.