WTForms compat.
Show subpage links again. Oops.
Update evolution descriptions for new gimmicks.
Use ability.is_main_series instead of checking for an effect.
Drop Gen IV flavour text from Pokémon flavour mini-sections.
Filter out blank "learned by x but not y" rows for Megas.
Filter out non-main-series Pokédex numbers.
Use new sprites.

I bumped the old icons up a few pixels for css-sprite-pokemon-icons.png
because they looked weird being out of alignment with the new ones in
breeding compatibility.  That's the only place they're arranged
horizontally and there won't be any alt-forms in there so I don't care
about hacking together a solution for alt forms.

The CSS is a little messy.  Sorry.  I didn't feel like figruing out
anything cleaner for the sake of spline-pokedex at the end of its life.

Likewise, I should probably have dealt with female Meowstic's icon by
checking whether it exists instead of special-casing it but whatever.
Take down the "under construction" notice.
Check if pokemon icons actually exist.
Show X/Y sprites in flavor summary, but prefer B/W sprites.

We don't have back sprites or shiny sprites for X/Y, so the B/W sprites
give a better overview. Use X/Y only if necessary.
Add X/Y to EVERY POKéMON EVER and EVERY MOVE EVER.

One could wonder why we have to do this manually every generation.

...
Add Dream World artwork tarball to downloads page.
Update external links.