Custom element for sub category of meals.
Merge branch 'master' of https://github.com/s7droid/Menu.git

Conflicts:
	appcompat_v7/bin/android-support-v7-appcompat.jar
New resources added

CheckoutActivity added

OrderMeals activity added with inserting few dummy data in list of meals

Custom expandable list created. Animation for opening and closing yet to
implement

Strings updated

Few things with action bar customization updated.
Merge branch 'master' of https://github.com/s7droid/Menu.git