Changed spinners to lists of checkboxes

Lists are manual (they're just put one after the order and not an actual
data structure). Following spinners were changed to checkboxes: academic
settings(checkbox_a#), behavior settings(checkbox_bh#), and
strategies(checkbox_strat#).
Added method to check bh checkboxes

Method doesn't actually do anything yet.
Merge branch 'master' of https://github.com/ronaldsmartin/Comegys-Behavior-Android