[BitBucket user: Alain Mazy]
[BitBucket date: 2017-03-09.10:27:14]

When sending a study to a PACS, the transfer failed because one of the series was not supported by the PACS.  All we get from the API is a 500 response.
That would be nice to get the error details in the response.  Right now, the only way to get the error details is to look in the logs:
```
StoreScuCommand.cpp:78] Unable to forward to a modality in a Lua script (instance 2eaaae63-8eb016da-7c34fa6c-ed427b0b-6c213be3): DicomUserConnection: No acceptable presentation context for modality
ServerScheduler.cpp:122] Job has failed (HTTP request: Store-SCU to peer "destinationPacs")
```