bizz84/SwiftyStoreKit 0.7.0

Major update to purchase flows

on GitHub

In short:

• This is a non-API breaking change
• Payments, Restore Purchases, Complete Transactions are now all performed on the same
  SKPaymentQueue observer.

This may resolve number of issues:

#130
#124
#120
#117
#110
#98
#80
#57

Extensive testing is recommended.

Full details on this PR: #131