Improved some things. 

Upload page : 
- Reduced the space used by the upload form.
- Added tooltips.
- Upload button is enabled only when all the fields are properly setted.

degreeCourseNav.tpl : added title-tag to spans. JQuery UI uses title to create tooltips on mouse hover event. 
degreeCourseNav.js : enable tooltips with JQuery UI.

resources.js : Fixed a little glitch on table rendering (when displaying resources page).

mainScript.js : Can be ignored.