• Add BraintreeFragment#getListeners to get a list of all the registered listeners
• Upgrade paypal-data-collector to 3.1.3
• Upgrade Kount DataCollector to 3.1
• Add AndroidPay#requestAndroidPay and AndroidPay#changePaymentMethod methods to simplify requesting Android Pay from a user and changing the backing payment method.
• Include ProGuard directives in the SDK (#120)
• Work around bug in JSONObject#optString
• Use FragmentTransaction#commitNow and FragmentManager#executePendingTransactions in BraintreeFragment#newInstance to synchronously set up BraintreeFragment and avoid race conditions caused by asynchronous Fragment setup.