Use 2-2-stable Spree
Remove ancient pending block for authorize+capture payment flow within BraintreeGateway's tests

Conflicts:
	spec/models/gateway/braintree_gateway_spec.rb
Correct arguments for BraintreeGateway's capture method
Ignored options on BraintreeGateway#capture should be optional
Use correct options when calling capture in BraintreeGateway#capture tests

Conflicts:
	spec/models/gateway/braintree_gateway_spec.rb
Braintree Credit test won't work because Braintree doesn't provide a way (yet) to settle the transactions

Conflicts:
	spec/models/gateway/braintree_gateway_spec.rb
Set auto_capture to true before void tests + call right void_transaction method

Conflicts:
	spec/models/gateway/braintree_gateway_spec.rb
Call correct credit! method in BraintreeGateway's spec's credit_using_spree_interface method

Conflicts:
	spec/models/gateway/braintree_gateway_spec.rb