Even on the computer screen, text was hard to read
against the night background; when printed with small
fonts, was very difficult to make out. This brightens
it up slightly, to make it more legible.
* consolidate code for drawing backsides
* drawSetNames: no need to calculate xPos / yPos per card
* Account for back_offset when calculating set name placement
Without this, if you had a negative back_offset_height (or
positive back_offset), it was possible to print set names that
would intrude onto the divider area on the backs
* draw setNames along side (left or bottom) with more space
This both provides more cushion, and makes it less likely that
location will change between front + back (due to back_offset_height)
previously, if you used, ie, "--cost=body-top", the cost would show in
the tab AND body-top. Since the help text implies that the way to
accomplish this should be "--cost=tab --cost=body-top" (and because if you
put it in body-top, it's probably because you want to save space on the
tab)
