Replace "non_common" with "rarity"
Add card lists by rarity
Use undefined instead of '?' for unknown cost
Simplify the order of cards on costs
Use an infinitely large number to order cards
Sort known card names before unknown card names
Merge branch 'refine-card-definitions'
Define the eid for Fairy Garden
H.EXPANSIONS: Support Fairy Garden
Add option: include_fairy
Add menus for Fairy Garden
Add a card list of Fairy Garden
Define known cards of Fairy Garden

From the first announcement:
http://hatokura.flipflops.jp/wordpress/archives/817
Define the first preview card of Fairy Garden

Reference: http://hatokura.flipflops.jp/wordpress/archives/824
Exclude unknown cards from COMMON_CARDS
Merge branch 'prepare-for-fairy-garden'

Close gh-75.