Started to add new method: load_card
Merge branch 'master' into load_card

* master:
  changed address/apt to address1/address2 and bumped version number to 0.0.4
  add card number to card_status calls and version bump to 0.0.3
  Added card_number to User class and bumped version to 0.0.2
  implement to_json and from_json on all model classes
  fixed issue with renamed module
  renamed gem to presto_api for uniqueness

Conflicts:
	lib/presto_api.rb
load_card should return HTML for user to confirm payment