You can now toggle between autograb mode by pressing CTRL-ALT-G
 (default, can be adjusted in keystrokes.cfg).

 Fixes ArcticaProject/nx-libs#384.

misc: fix more regressions and whitespace weirdness introduced in 913fcf1a.

The are now called reflecting their purpose:
viewport_scroll_left/up/right/down. This also regroups all the
keystrokes referring to viewport stuff.

Default is ctrl-alt-k

doc/libNX_X11/lcUniConv: Move over the rather-documentary files 8bit_tab_to_h.c and cjk_tab_to_h.c to nx-libs's doc/ folder.

doc/libNX_X11/lcUniConv: Pull over README from X.org's libX11 to document the origin and purpose of 8bit_tab_to_h.c and cjk_tab_to_h.c.

New helper script: regenerate-symbol-docs.sh. Plus update symbols usage of libNX_X11 and nxcompext in nxagent, nxcompext and libNX_X11.

doc/_attic_/: Introduce an "_attic_" folder. Move diffs between NoMachine's nx-X11 3.5 and X.org 6.9 here.

test scripts: Add test scripts for testing Unix file socket support (i.e. proxy2proxy and proxy2agent sessions via Unix file sockets).

This commit provides documentation about some error tests that have been
run to check how well behaves nxcomp after removing it's compatibility
code with versions prior to 3.5.0 and it has to handle a situation in
in which and older proxy tries to connect with a nxcomp 3.6.x based proxy.

Refs: ArcticaProject/nx-libs#108

  * Update nxcomp/LICENSE.
  * Add nxcomp/README.on-retroactive-DXPC-license, giving a
    short overview of the flow of discussions
  * Add "modified or unmodified" to the license information
    printed out to stdout in nxcomp/Misc.cpp
  * Fix copyright year (2006->2003) for Gian Filippo Pinzari
    (and move him to the GPL-2 section).
  * Add the complete .mbox file of Debian bug #748565.

 Launch this script (after nxproxy has been installed into $PATH) and you
 will be able to evoke any local command through a

    nxproxy -C <-> nxproxy -S

 connection on DISPLAY=:8.

 This eases testing NX compression without using NX agent on the server
 side.

 How to use:

    # install nxproxy into $PATH, then...
    $ cd doc/examples/
    $ ./run-nxproxy2nxproxy-test
    $ export DISPLAY=:8
    $ xterm

  NoMachine kept all original X.Org 6.9 files in the nx-X11 source
  tree. These files have been removed in Feb 2015 during a major
  code cleanup.

  For later studying we provide all diffs of the changes that
  NoMachine employed on the original X.Org X11 code tree in the
  doc/nx-X11_vs_XOrg69_patches folder.