patch:  Enable multiple RTAI versions on a single system

/usr/bin/rtai-config becomes a stub script that helps select another
kernel-specific /usr/bin/rtai-config-<kver>.

https://github.com/ShabbyX/RTAI/issues/16
rules:  ignore failed 'make distclean'

'make distclean' doesn't ever work, so try it but ignore failures
Convert package from python-support to dh_python2

https://wiki.debian.org/Python/TransitionToDHPython2
Enable fpu support
Update changelog & bump rev
Add patch to force 16-byte stack alignment

Allow SSE instructions in kernel modules

Seen on Debian jessie and other places:

[...]/testsuite/kern/latency/latency-module.c:1:0: error:
    -mpreferred-stack-boundary=3 is not between 4 and 12

http://mail.rtai.org/pipermail/rtai/2013-December/026198.html
rtai-config-multi-kernel.patch:  suppress error messages

RTAI package build uses fake Linux sources; no need to expose these
errors

    checking linux utsname... x86_64-linux-gnu-gcc: error:
        [...]/debian/linux/include/linux/version.h: No such file or directory
    x86_64-linux-gnu-gcc: fatal error: no input files
    compilation terminated.
    not found
quilt patch:  x86 default .config:  CONFIG_RTAI_CPUS="8"

Reported by Mick/Schooner/@ArcEye

Kernel crashes if number of host CPUs is greater than
`CONFIG_RTAI_CPUS`
Add RTDM option
Install /etc/grub.d/09_rtai

Generates extra RTAI kernel entries with isolcpus= set
Enable specifying RTAI kernel version through environment variable