refine the way mark attendance works so it downt mark all students at once and I only have to write the click listener once. The option available to mark a student are more dynamioc now - those options need to be moved into the json file so that later the server can dictate what options are given for a student to be marked.  Still have to finish the styles [axof: 129]
added dynamic student marker options - now only have to use one click event handler - attendance options have a display value and a style value [axof: 129]
Merge pull request #15 from deeger/markAttendance

Mark attendance