navigation bar aangepast, enrolledcourses aangepast
Merge branch 'FerDev'

Conflicts:
	JavaServer/calzone/src/main/webapp/WEB-INF/jsp/EnrolledCourses.jsp
algemene veranderingen jsp files
Merge branch 'master' of https://github.com/CalZoneVUB/CalZone
Merge branch 'FerDev'
Merge pull request #69 from fsuarezg/master

Algemene jsp aanpassingen