Added custom FoodItemArrayAdapter for each food item in the MealFragment.
Ignore the Enter key in the Search edit text.
Fixed MealFragment language initialization. Updated text of total carbs.
Moved "Clear meal" button to action bar to avoid accidental button presses.
Added RecentFoodsFragment. Fixed display of carb values in the food lists.
Food from the Recent foods list can now be added to the meal. Meal food items can now be edited.
Added FoodItem.equals() and .hashCode() implementations for object comparison. Removed DeepEquals.java because it uses reflection and is slower.