paulkim6 jcheng26: Added Adapter
paulkim6 jcheng26: commented out erroneous code
hlim10 ssong25: Changed Daily Class
hlim10 ssong25 : Modified Habit class
hlim10 ssong25 : todo class modified
paulkim6 jcheng26: Improved inventory layout
paulkim6 jcheng26: Inventory Activity functionally working
paulkim6 jcheng26: Refactoring InventoryActivity
Merge branch 'US10'
color feature: ssong25, hlim10

color change to habit, todo, daily
paulkim6 jcheng26: Added database connection to Reward Activity
lchen59 kwchen3 finished HabitsDB and tests, modified equals function for Habits