Added service description for IVR and MiniTIx
Merge pull request #2 from itavero/other-gateways

Service descriptions for IVR and MiniTIx
Added minitix and ivr to readme
Added configurable Buzz client
Fixed Buzz client
Fixed bad DIC confi
Fixed Buzz service
Stick to AMNL/Mollie v0.0.1-RC01
Allow ruudk_mollie.buzz_client variable to be a service id