Disable ip spoofing check.
PaypalService owns paypal account data
Merge pull request #634 from sharetribe/ip-spoofing

Disable ip spoofing check.
Merge pull request #635 from sharetribe/paypal-owns-account-data

PaypalService owns paypal account data
Move hide_account_number to StringUtils
Rename BraintreeService to BraintreeEscrowReleaseHelper
Move under BraintreeService
Get rid of preauthorized hook
Get rid of paid hook
Add BraintreeService