Merge pull request #67 from remear/master

Resolved :rubygems is deprecated
Merge pull request #68 from remear/master

Gem dependency upgrades
allow faraday http adapter to be set through Balanced.configure
change :adapter to :faraday_adapter
fix typo in spec
add net-http-persistent to test group in gemfile
Merge pull request #70 from ajsharp/allow-setting-faraday-adapter

Allow faraday http adapter to be set through Balanced.configure
do not try and pass back Balanced::Resource objects to the API
Update README.md

Added more links to documentation
implemented the customer resource #79
took out sleep, removed positional args for credit and debit
abstracted out adding an item to a customer
changed customer to be created through marketplace, refactored add_item to extract_uri_from_object, refactored active_bank_account and active_card
added support for adding an untokenized card to a customer
modified transaction spec to load object first and then test
removed transaction spec
fixed on_behalf_of attribute setter for customer
Merge pull request #82 from rloomba/customer

implemented the customer resource #79
Remove debugger line from customers example