4.0.0

• Adds requestDeviceData (thanks to @lutfidemirci ) #61
  See more details here https://developers.braintreepayments.com/guides/advanced-fraud-management-tools/overview
  This data should be sent if 'Advanced Fraud Management Tools' is enabled in your Braintree account
• Changed version resolution of Android Braintree SDK to 3.+ so there doesn't need to be a version bump of this package each time that SDK version updates

Breaking Changes:

• You must add pod 'Braintree/DataCollector' to your os/Podfile file
• Add com.braintreepayments.api:data-collector:3.+" to your android/app/build.gradle file

Suggested changes:

• Change your Braintree Pod entry to pod 'Braintree', '~> 4'
• Change your Braintree SDK entry to implementation "com.braintreepayments.api:braintree:3.+"
  This will allow those versions to be up to date instead of stuck on set version