Log Message:
Update to latest stable release (0.16.8.8). Changes from previous:

- Fix pagers when enabling after initially being disabled
- Remove unused backup-....cfg stuf
- Fix fallback textclass
- Don't crash if trying to start when no theme is found. Add missing
  newline.
- Fix parsing title, name, and class matches in windowmatches.cfg
- Remove trailing dash in release version string
- Enable setting imlib2 image cache size
- Eliminate some remainders from Window re-wrapping done a while back