Removes on_change from BBModel::__set, it was already being from set_new_value, which is how __set saves the change
Merge branch 'dev' of https://github.com/BinaryBeast/BinaryBeast_API_PHP into dev
BBSimpleMode::clear_error no longer calls BinaryBeast::clear_error
BBTournament::teams() now uses == false when checking the get_list value, updated documentation to reflect correct format for defining seeding type

the reason for updating teams() to use == false, is get_list will retunrn false if there's an error, and teams() checks for that..
which is great except that empty arrays also evaluate to false, so if an empty teams array was returned, teams() mistakenly treated
it as if there were an error returned
Adds more PHPUnit tests for the BBTournament model