Stats are now on a per-gen basis in a similar manner to abilities

Typo
Added a stats.txt to each gen

6G pokemon with stat changes are documented
http://serebii.net/xy/updatedstats.shtml

Pokemon changed:
butterfree
Beedrill
Pidgeot
Pikachu
Raichu
Nidoqueen
Nidoking
Clefable
Wigglytuff
Alakazam
Ampharos
Azumarill
Roserade
Scolipede
Krookodile