notifications updates (update db schema using db/notificationsUpdates.sql), added default profile image
Changed onclick element to profile image (update db schema using db/notificationsUpdates.sql)
Changed onclick element to profile image (update db schema using db/notificationsUpdates.sql)
Merge remote-tracking branch 'remotes/origin/notificationsUpdates'
Added script for updating pre-existing notifications table
Conflicts:
	conDB.php
	lib/credentials.php
	templates/header.php