removed invalid css line
improved rightpanel css class
added classes to style the navigation panel
added flv_icon file
improved adamenu with navigation panel/resources styles
bug fix in removeEmptyElements method
video player code in rightpanel is generated with an ajax call to a script using media_viewing_classes
Fixed bug in user display news
Fixed bug in user.php
Modified search.php:deleted node in student $neededObjAr
Deleted $neededObjAr to main_index.php because it's repeated
Deleted old menu in tutor.tpl
Fixed bug in view.tpl
Addded iteration looking for the print.css file in external modules.
Moved executeSearch function from node_classes.inc.php to courses_classes.inc.php
Merge remote-tracking branch 'upstream/master'

Conflicts:
	browsing/class_info.php
	browsing/user.php
	layout/ada_blu/css/browsing/user.css
	layout/ada_blu/templates/browsing/viewSelfInstruction.tpl
	layout/wisp/templates/browsing/user.tpl
	layout/wisp/templates/browsing/view.tpl
	modules/test/layout/ada_blu/templates/tutor.tpl