add same fix as in slider brick, hardcode brick_list_type
document migration for accordion bricks, add brick types to seeds
add accordion_brick and accordion_item_brick
add edit views for accordion_brick and accordion_item_brick
cleanup brick and colum brick specs
add translation for accordion item brick form
Merge branch 'features/accordion_brick' into releases/v1.0

Conflicts:
	db/migrate/02_create_kuhsaft_bricks.rb
	db/seeds.rb