Fixes #1: project setup
Fixes #2: cake bake plugin and other setup
Fixes #3: empty component
Fixes #4: removed namespace
#5: create payer WIP
#5: fixed component initialize PHP notice
#5: fixed unintentional recursion
#5: fixed type in event name
#5: better API interface for create payer
#6: initial create payment method
#6: fixed some undefined vars and bad function args
#6: doc comment change
#7: initial authorize transaction
#7: forgot to call authorize transaction
#8: refactor to Lib/Payment/ProPayProcessor
#8: delete unused files
Fixes #9: more parameter robustness
#10: remove debugs, added doc comments to class vars
Refs #10: removed CakeLog::debug's