Update omnipay/common to v2.1

Test that package installs successfully

Add v1.1.0 release notes

Update pin gateway to add support for purchasing with card tokens fro…

…m Pin.js. Closes thephpleague#128

Add v1.0.3 release notes

Add v1.0.2 release notes

Add v1.0.1 notes

Style fix

Fix tests

Add SecurePay callback URL