set Project Id for TransactionRequest

It is now possible to set the projectId for a transaction request

fix curl settings

Merge pull request #32 from sofort/fix-curl-settings

remove curl settings, fixes #31

Removed validation of reason fields

Removed validation of reason fields in api calls. The validation here was more strict than from the API.

handle global error for refund

handle global error for refund

Added Error Strings

Get all Errors as String

Version 3.0.6

Fixed issue (#10)
Code cleanup + housekeeping

Added Example

Merge pull request #7 from vojtasvoboda/feature/transaction-id-example

Update payment example

Don't advertise public domains for callback urls

removed static urls from examples

Added param productCode for testing purposes

3.0.3

Update Changelog 3.0.3

update legal information

Merge pull request #1 from sofort/3.0.x

3.0.1