Started work on the server-side logic of the communication between the server
and the raspberry pi. Paired by Richard and Michael. (Feature #182)
Server-side logic for database receiver almost complete. Paired by Richard
and Michael

The server-side logic for the database receiver is complete apart from
authetication. All unit tests pass and integration testing seems to work (but
will be better tested on the client-side logic). Feature #182
Merge pull request #76 from CO600GOL/feature/#182_server_side_logic_for_database_receiver

Feature/#182 server side logic for database receiver