Every flavor page should work with no missing sprites. Save perhaps for
Unown, because I honestly don't have them.
Every sprite exists as ###-form.png. There is also still a ###.png,
containing a reasonable default form, so people who don't give a crap
about this mess can just use the numbered sprites. Beta forms should
now all be ###-beta.png.
Form groups now have a notion of "in-battle", which is used to hide
overworld sprites when appropriate.
Form sprites have a first-class sense of being a default or not, too.
Deoxys is... well, let's not talk about Deoxys. Deoxys is fixed.
Types, abilities, egg groups, and stats for Shaymin, Giratina, and Rotom forms.
Updated height and weight for Shaymin and Giratina forms.
Added Giratina's form descriptions and updated Shaymin's to mention link
battles and freezing.
