hide _pre_create_id from UI
bump
merged
implemented SessionType vars
Merge branch 'master' of github.com:oTree-org/otree-core
add vars to test sessiontype
added default for vars
Merge branch 'master' of github.com:oTree-org/otree-core
vars is working
most of the way through implementation of new grouping and assignment to matches
renamed to group_by_arrival_order
renamed back and fixed small bug
removed unused code
edit models public API
fix players_per_group
fixed app_label vs app_name issue
.
getting rid of player code because i think it causes confusion
comment out failing assert, and remove some unused code
fixed the problem, it was with deleting objects with incoming foreignkey pointers