Added support for Financial API, Directory API, verified qualifications.
Added support for verified age (TrueAge).
Added support for GetAuthenticationDetails, including geolocation.
Fixed GetIdentitySnapshotDetails failing if no snapshot ID supplied (fixes #1).
Fixed beginAuthorisation failing to detect current URL correctly when URL
rewriting employed (fixes #2).
Fixed SSL certificate validation for sts.miicard.com failing on newer
combinations of PHP and libCurl (fixes #3).
Various minor styling and tidiness updates to test harness.
Added links to API documentation from readme by data type and API method.