For Administrators, show Percent of Students Achieving Learning Outcomes By Academic Session

Fixes  to queries

-Allow viewing of criterias with different amounts of scales

-Added comments on various controllers on what each function does.
-Removed some unused commented code.

-Deleted code that was commented.
-Change the order of function definition in the controller.
-Fixed the use of clean input and validator in the controller.

para Oniel poder cambiar de branch, necesita commit y merge estos files

My report of changes and additions I made during the semester.

Añadí un readmePLease.txt que creo que abarca lo más importante.

The table now has 3 new columns of data that can be edited.
Added a form to create a new learning outcome.

-se creo una pagina para ver objectives and criteria, similar a ver learning outcomes and criteria.

esta pagina ahora enseña los learning outcomes basados en el/los semestres que el usuario tenga seleccionado.