[aur-general] package cleanup requests

[TDY]

Hopefully this email doesn't turn out blank like my last one.  Please 
remove these packages of mine:

pal: http://aur.archlinux.org/packages.php?ID=32149
- accidentally uploaded a dupe just now
echinus-hg: http://aur.archlinux.org/packages.php?ID=16908
- project moved to git

gscrot: http://aur.archlinux.org/packages.php?ID=16389
- project renamed to shutter

Thanks.