Revision 9

Sorry about that, still learning how to use Git! Continuing on from
Revision 7.

-Achievements.java shortened
-Hat class created inside Customer.java to handle the new hats
-3 new hats added
-Working Notifications via Notifications.java
-Working Tips via Tips.java
-Working Achievements via Achievements.java
-10 tips added
-1 achievement so far but more coming soon
-Fixed negative servings in container
-Slightly adjusted effects
-Windows moved down to make room for notifications