machinetalk/checks: make sure this executes properly for kthreads too

in which case an absolute path is required
Merge pull request #290 from gmoccapy/master

gmoccapy_1_2_2 - does now support also matchbox-keyboard
Merge pull request #291 from mhaberler/master

machinetalk/checks: make sure this executes properly for kthreads too
added missing dependencies that are needed when compiling using pbuilder
Merge pull request #295 from kinsamanka/fix_missing_deps

added missing dependencies that are needed when compiling using pbuilder
configure/czmq/zmq: check for authentication-related functions available

this tests both the czmq and zmq libraries.
Merge pull request #297 from mhaberler/zmq-test

configure/czmq/zmq: check for authentication-related functions available
post install: create /var/log/linuxcnc.log, make it readable, restart rsyslog
- fixed the location of machinekit.ini file and /machinekit/config.py
- added both files to debian installer
Merge pull request #301 from kinsamanka/fix_#300

Fix for issue #300
scripts/linuxcnc.in: set default for MACHINEKIT_INI

user may override this by 'export MACHINEKIT_INI=<path>'
scripts/realtime.in: point MACHINEKIT_INI to installed default unless overridden

normally realtime would inherit MACHINEKIT_INI from scripts/linuxcnc but it
might be called standalone as well so assure a sensible setting is in place
tests/halui-jogging: disable
Merge pull request #299 from mhaberler/touchups

fix missing MACHINEKIT_INI default + export, /var/log/linuxcnc.log permissions + logging
scripts: fix path for EMC2_SYSTEM_CONFIG_DIR
Merge pull request #302 from mhaberler/fix-touchups

scripts: fix path for EMC2_SYSTEM_CONFIG_DIR
debian/rules.in: retain setuid root on all rtapi_app_* files
Merge pull request #303 from mhaberler/fix-touchups

debian/rules.in: retain setuid root on all rtapi_app_* files
Fix hostmot2 firmware package deps
Merge pull request #304 from zultron/hostmot-firmware-deps

Fix hostmot2 firmware package deps