Update README.md
Removed views: keep the module simple.
Fixed IPN by using a direct query.
Fixed PayPal::number_format with PayPal conventions.
Merge branch '3.3/master' of https://github.com/Hete/kohana-paypal into 3.3/master
Fixes in composer.json for type and urls.
Fixed rules for DoDirectPayment.
Valid composer.json.
Added a list of payment status for GetTransactionDetails.
Updates licence information to BSD-3-Clause.
Fixes whitespaces in class files.
Fixes 2 typo in the IPN.
Fixes and tests for the IPN.

It checks if the test_ipn field matches the environment.
Only live request are verified upon PayPal.
Added PayPal supported countries.
Uses static keyword in class that subclasses PayPal.