cpm starts, but segfaults on arrow keys

[comotion]

this is #12 all over again: your memlock limits are too low. please increase them in /etc/security/limits.conf and reboot your system.

looking into whether it's possible to detect this condition and at least error/exit out instead of segmentation faults.

[comotion]

4c330c9 should detect limits and remove the necessity for the suid bit on newer kernels