Created a page displaying the upcoming classes.
Created actions for the class management page, and added attendance page.
Added class details to attendance.
Made class manager print friendly.
Added training and curriculum information.
Added view for digerati 101 classes.
Added a js table sorter.
Added ability to sort by date time.
Changed attendance to roster.
Moved extension paths into an array.
Added sign in sheet for Digerati 101 classes.
Added layout for the sign in pages.
Now hiding the icon inidicating sort on printing.
Added ability to remove students from class.
Added confirmation on removing a student from a class.
Added back link for class manager sub pages.
Merge branch 'class_management' into develop