Minor fix for using pathes to pick comics
Some fixes...

AbstruseGoose: fixed prev
Carciphona: fixed latest
Curtailed: fixed image and prev (moved to WP)
DorkTower: fixed image search
GrrlPower: fixed site name issue
MadamAndEve: archive not updated in a long time, but current strip is.
Works, but needs to be run daily.
PennyArcade: fixed namer
PvPonline: fixed prev