Moved the deleted columns into the ultimatum_group table.
Added subject payoff calculations on update.
Moved subject payoff to the Session controller.
Added the updateValidator function.
Added session validation functions.
Added trust payoff getter function.
Added id getter.
added trust proposer and receiver entry getter functions.
Removec the getAllocationEntry function.
Added function PHPDoc.
Added group getter and setters in addition to functions needed to calculate subject payoffs.
Removed setter and getter functions that are now in the UltimatumGroup class.
Added treatment group retrieval function.
Added getSession function.
Added PHPDoc to functions.
Added PHPDoc to functions.
Add error display to the researcher dashboard.
Added trust payoff.
Removed game information from main researcher dashboard.
Added trust task Id and payoff