Added example of using Bitpay class with some more information about usage and error messages
Merge pull request #126 from aleitner/master

Curl options can now be set in the adapter class
Merge pull request #122 from JoshuaEstes/MoreDocumentationForTutorial

Added example of using Bitpay class with some more information about usage and error messages
Minor formatting update
Removed unsupported legacy php version testing
Mink/Behat testing begun