Server/Ticket76/Fix the "crash_report_ack" response from server

[bdfhjk]

The scope is to fix the server, that it will communicate correctly with the client communication.

The only thing that's not working correctly is a JSON response to a new crash report.

Please update the JSON response on the server to be consistent with documentation:

http://docs.dpcs.apiary.io/#reference/crashes/crash-report-collection/send-a-new-report

[patrikos94]

#80