Added List of Universities to an Array
Modified the university list array to include the conversion factors
Added radio buttons to select input type
Added functions for percentage calculations and GPA conversion
Added support for 0.80 credit weights
Added a GPA list array
Added array that contains a list of GPA's along with all of their
corresponding percentages and letter grades
Finished calculating GPA based on percentage
Fixed letter grades and removed 3.8 GPA from array
Changed E/F to F for easier input
Added percentage, letter, and 12 point outputs to html
Added letter to GPA conversion functionality
Added conversion for 12 point to GPA
Added performance based messages to output based on GPA
Removed unecessary commented line