Removed snow mana from land mana cost.
Planeswalkers almost done; need to handle those with loyalty costs above
9.
titlecase.py provides much better capitalization for names and
rulestext.
Choices now have dash and bullet points.
Added lib and script subdirs to organize things; the biggest change is that now
we have a really powerful Card class that can handle all of the decoding and
encoding for us. encode.py has been written to take advantage of this, other
things have not yet. Coming soon! As a side note the changes to output.txt
are purely cosemtic, though the order should be stable now.
