Add identifiers for version groups.
Fix B2/W2 version group identifier.
Set forms_switchable for new Pokémon.
Set forms_switchable for Mega Evolutions.
Add Aromatic Mist.

I'm not going to bother sorting it in; all the IDs are about to change
anyway when we get the few remaining internal IDs on the spreadsheet.
Make Gen VI move IDs match internal IDs.
Make Gen VI ability IDs match internal IDs, almost.

We have way of figuring out IDs for Aerilate or Parental Bond, because
those abilities are only on Megas.  I assumed they'd fit in the two-ID
gap and took a wild guess at order.  (I put Parental Bond first
because Kangaskhan comes first.)
Add new items.
Add TMs/HMs for X/Y.

TM100 might get mistaken for HM00, idk.  Really there should just be an
is_hm column.  I'd do it myself, but then I'd have to update
spline-pokedex too, and urgh.
Add moves for Kalos Pokémon.

Level-up moves taken from the spreadsheet; other moves taken from
Pokémon Showdown.
Tweak a couple new ability descriptions.
Add stats for new Pokémon, incl Megas.
Add egg groups for new Pokémon.

I'm kind of confused about these.  These data (which I got from
Showdown, again) include egg groups for Carbink, which is genderless;
I have heard that the official guide lists egg groups, but then
Pumpkaboo and Gourgeist aren't listed as being in Grass, which is...
very suspicious.  Hm.
Add heights and weights for most new Pokémon.

Missing: Aromatisse, Large Gourgeist, most Mega Evolutions.
Swap the order of Average and Small Pumpkaboo/Gourgeist.

Apparently the order column was one off starting after Arceus,
presumably from when I accidentally left Fairy Arceus as a second
default.
Belatedly commit the new item categories I added.
Add national dex numbers for Kalos Pokémon.
Split Pokédex version groups into their own table again.

spline-pokedex doesn't need to adapt; Pokedex.version_groups looks the
same as always and VersionGroup.pokedex wasn't used anywhere.
Set colour, shape, and growth rate for Kalos Pokémon.

That's everything trivial that goes on pokemon_species.
Add Kalos locations.

I skipped Flare Café and Team Flare HQ because I'm not convinced
they're real locations — the Café is just labelled part of Lumiose,
and Team Flare has two different HQs which may or may not be called
Team Flare HQ and I have no idea.  They can get added later if
they're correct.