Remove obsolete files from Classic API
Remove obsolete files from Classic API
Create PayPal auth token
Create PayPal auth token
Update payment function
Update payment function
Return payment object on successful execution
Return payment object on successful execution
Create dynamic payment objects
Create dynamic payment objects
Add type checking.
Add type checking.
Implemented basic server for #156
Allow pending transactions to be passed back to app
Allow pending transactions to be passed back to app
Check clientID against stored session.
Check clientID against stored session.
Apply tax calculation to transaction, from each item.
Move call to composer autoloader to PHP bootstrap

Was previously called from the PHP.Gt autoloader file, which was itself
called when a source file was not found in context.  The new way is
better as it ensures composer files are always in-context.
Add behat related dependencies