Fix failing tests
prep for mvn central
web hook update fix
Add support for fee property
Fix tests
Add method for creating a transaction with a fee
update cancelAtPeriodEnd for subscription doesn't work

update cancelAtPeriodEnd doesn't work as well
fix update of payment for subscriptions
Merge pull request #17 from aluedeke/master

fix update of subscriptions
Fix and improve the test suite
Fix updatable property name
Add dependency indicator to README
Sync
Merge branch 'master' of https://github.com/paymill/paymill-java