Homepage and Help page bug fixes

Changes:
1.  Courses showing up as 'undefined' are fixed.  An if statement checks
to see if a course has been selected, if not, change variable
"courseName" to an empty string.
2.  Changed homepage check animation to different green.
3. Help page is now compatible with homepage (Duy's changes)
4.  Added two pageRefresh functions for complete and delete functions,
with increased timeout intervals so they refresh after the animation.