Make 220_nxproxy-bind-loopback-only.full+lite.patch cleanly apply after having added 027_nxcomp_abstract-X11-socket.patch.

Add 027_nxcomp_abstract-X11-socket.patch. In proxy mode server let NX proxy attempt connecting to the abstract X11 socket first, and only fallback to the file system socket, if the abstract socket is not available. (Fixes: #505).

Update 320_nxagent_configurable-keystrokes.full.patch: The keystrokes config file's default name now is keystrokes.cfg (plural).

Make sure, patch 056_nx-X11-Werror-format-security.full.patch gets included into rolled tarball (by renaming *.patch to *.full.patch).

Add patch: 056_nx-X11-Werror-format-security.patch. Fix more -Werror=format-security errors that only show up on ARM builds. (Fixes: #423).

Add patch: 055_nx-X11_imake-Werror-format-security.full.patch. Fix FTBFS of imake on current Fedora rawhide (21) which uses the compiler option -Werror=format-security for all builds. (Fixes: #412).

Drop symlinking libNX_xrandr for setting a custom LD_LIBRARY_PATH. Not in use anymore and not recommended at all to have that.

The RPM macro for the linker flags does not exist on EPEL. Thus, hardcode __global_ldflags macro for EPEL builds.

Improve patch: 601_nx-X11_build-option-changes-to-not-use-bundled-libraries.full.patch. Improvements taken from the current Fedora package. Thanks to Orion Paplowski!!! Also adapt roll-tarball.sh do dropping more bundled libraries.