Toggle view of toolbar panel buttons based on current user's permissions.

TOCHECK: the Config manager seems to act up sometimes.

Signed-off-by: Tushar Narayan <tusharnarayan@gmail.com>
Merge remote-tracking branch 'origin/team1-permissions-buttons-updated' into team1-dev

Conflicts:
	RequirementsManager/src/edu/wpi/cs/wpisuitetng/modules/RequirementsManager/Toolbar/ToolbarPanel.java

Signed-off-by: Tushar Narayan <tusharnarayan@gmail.com>