have observers partially integrated.
made more mods.
fixed the display bug finally.
small change/
browse command now fixed yay!
clean it up
Merge remote-tracking branch 'origin/master'

Conflicts:
	Medical Imaging System/bin/BrowseCommand.class
	Medical Imaging System/bin/Main.class
	Medical Imaging System/bin/NotificationPanel.class
	Medical Imaging System/bin/Study.class
	Medical Imaging System/src/NotificationPanel.java