croutonwheel: Replace awk by mawk (-W interactive is not POSIX, and does not exist in gawk).
Merge pull request #145 from drinkcat/mawk

croutonwheel: Replace awk with mawk
Remove spaces from unmount-chroot ppid.
Do a better job killing off croutonwheel.

Fixes #117.
Report when rc.local fails, but continue entering the chroot.

Fixes #148
Fix spurious scrolling on fast motion with Xephyr on R26+