purchase form done
Merge remote-tracking branch 'origin/master'

Conflicts:
	app/src/main/java/com/example/nicklawler222/shopping/MainActivity.java
	app/src/main/res/values/strings.xml
merged w/ master
fixed most logged in user logic

logged in user can view drawer items:
- home, car, men, office, pets, videogames, women, browse, search, recomend, logout

guest users can view drawer items:
- home, car, men, office, pets, videogames, women,  login

!!!! Contains temp drawer item "Purchase Screen"
cart fragment gets cart contents from db, add to cart button adds product to user's shopping cart in db
Merge remote-tracking branch 'origin/cart' into cart

Conflicts:
	app/src/main/java/com/example/nicklawler222/shopping/MainActivity.java
cart fragment gets cart contents from db, add to cart button adds product to user's shopping cart in db