false start . . .
added Everything to Gain, Fightball, Gaming Guardians,
High School Drama!, Nodwick, Unexploded Cow sets
Fixed error - extra (uncommented) INSERT INTO button line for Fightball
* display button image and button recipe at the sides of the UI
* make the UI more vertically compact
* make the die circles smaller, and move the recipes outside of the circles
* move button image art to a subdirectory for convenience
Merge branch 'master' of github.com:buttonmen-dev/buttonmen into 348_ui_less_vertical
Conflicts:
	src/api/dummy_responder.php
* finish fixing merge conflict by readding my changes to dummy responder in its new location
Merge pull request #517 from cgolubi1/348_ui_less_vertical

UI refactor
* add attribution for Button Men art
Merge pull request #522 from cgolubi1/521_attribution

* add attribution for Button Men art
Merge pull request #525 from ManvilleFog/504_add_official_bm_sets

504 add official bm sets
* on user creation, call out missing username/password separately from other errors
Merge pull request #527 from cgolubi1/245_user_creation_errors

* on user creation, call out missing username/password separately from other errors
* in the choose swing dialogue, show the opponent's swing die ranges too
Merge pull request #529 from cgolubi1/332_opponent_swing

* in the choose swing dialogue, show the opponent's swing die ranges too
Merge remote-tracking branch 'upstream/master' into 89_auxiliary