added JSON read and write
	new file:   courses.json: added
	new file:   dist/json2.js: added
	modified:   index.html: added json2 to script
	modified:   script.js: added save, $('panel').click; changed getCourseJSONs, main
added colors, weeks
	courses.json: added colors, weeks
	script.js: ColorFactory:changed nextIndex;
		   Shedule: changed monthNames;
		   Course: changed draw;
		   Month: changed draw;
added names and weeks to courses
	modified:   courses.json: added names, weeks;
	modified:   script.js: Course: added snapText, snapWeekText;
	modified:   stylesheet.css: main: cursor pointer