Generic procedure to add patches to existing packages.

[Fathi Boudra]

> the problem is here:
>
> Trying reverse patch debian/patches/70_kdm_consolekit.diff at level 1 ...
> 0 ... 2 ... failure.
> make[1]: *** [reverse-patches] Error 1
>
> after the make -f admin/Makefile.common dist, we call
> debian/rules clean -> debian/rules reverse-config
>
> and we fail to reverse patches.

Don't patch Makefile.in ... It breaks create-buildprep script.
patch fixed in r8634. WIP to detect/fix it in the script.

cheers,

Fathi