run-nxproxy2nxagent-over-network: New test script that tests nxproxy/nxagent connectivity between networked hosts.

Attributes GH PR #196: https://github.com/ArcticaProject/nx-libs/pull/196

This patch isn't necessary in Xlib 1.4 and later since the keysymdb has been
made redunant. While we're on 1.3.x, we need it.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

Attributes GH PR #211: https://github.com/ArcticaProject/nx-libs/pull/211

This fixes ArcticaProject/nx-libs#206.

Attributes GH PR #210: https://github.com/ArcticaProject/nx-libs/pull/210
Fixes ArcticaProject/nx-libs#205.

randrproto: It was discovered that nx-libs shipped two different version of randr.h and randrproto.h. This commit leaves the newer file versions in the package and let's the build process use those everywhere.

nx-X11: Enable -Wpedantic as default CFLAG. This is to detect redefined typedefs when building nxagent.

hw/nxagent/X11/include/Xrandr_nxagent.h: Reduce injected libXrandr(_nxagent) header file, so that it only contains the XRRScreenChangeNotifyEvent typedef.

This fixes ArcticaProject/nx-libs#204.

However, this fix does not address the root of the problem, it simply avoids
it. We could run into it again... See bugreport for an explanation.

Makefile: Adapt install target to the new situation where we fake X11 headers in .build-export. This fixes FTBFS during file installation into .deb and .rpm packages.

nx-libs.spec: Add BuildRequires: imake

Fixes ArcticaProject/nx-libs#202.

Attributes GH PR #201: https://github.com/ArcticaProject/nx-libs/pull/201

After commit cbf3ef0f219a7d5c94a7f5d5b46c9a0e26cc6588 this no longer
necessary.

This reverts commit 9a4bb50a.

System headers including other headers via <X11/..> now use the
nx-X11 variant (if existing).

With this patch in place we should think about dropping the
<nx-X11/..> namespace now for includes.

Fixes ArcticaProject/nx-libs#200.

Attributes GH PR #199: https://github.com/ArcticaProject/nx-libs/pull/199

xserver upstream has included the required files. So do we.

Upstream does not use xkbfile but has own copies of the required
files. It was not used elsewhere.

nxcomp/Loop.cpp: We have PrintVersionInfo(), why not use it? Use endl instead of \n for EOLs when streaming application's preamble to stderr.

nxcomp/Loop.cpp: We have GetCopyrightInfo() in Misc.cpp, so why not use it? Also: point to ArcticaProject/nx-libs namespace on Github for further information.

hw/nxagent/Init.c: Fix copy+paste flaw when re-arranging copyright information as display by nxagent.

nxcomp/Loop.cpp: Refer to Github namespace of Arctica Project as location to search for software updates.

 Fixes ArcticaProject/190

 Fixes X2GoBTS#952

Attributes GH PR #194: https://github.com/ArcticaProject/nx-libs/pull/194

nxagent.1 man page: Some layout fixes for string options with well-defined expected selections of values.

hw/nxagent/Display.c: Fix comment where the meaning of the "bypass" reconnectchecks parameter value is explained.

Attributes GH PR #183: https://github.com/ArcticaProject/nx-libs/pull/183

Together with PR #143 this fixes ArcticaProject/nx-libs#132.

t merges an updated upstream into a topic branch.

nx-X11/programs/Xserver/hw/nxagent/Display.c: add FIXME comment to nxagentCheckForColormapsCompatibility().

Maybe needs special strictness handling as well.