Release notes 0.3.17

Version 0.3.17 is now available.

Changes: * new getwork, thanks m0mchil * added transaction fee setting in UI options menu * free transaction limits * sendtoaddress returns transaction id instead of "sent" * getaccountaddress

The UI transaction fee setting was easy since it was still there from 0.1.5 and all I had to do was re-enable it.

The accounts-based commands: move, sendfrom and getbalance will be in the next release. We still have some more changes to make first.