Mainly have added a 'short_description' field to the job submission and reporting thereof.

More error-detections when moving/renaming the local files at the computational server end (server.cc).

Somewhat untested json-escpaing utility code added (still not properly designed or anything, just a hack).

Also a minor todo w.r.t. controller throwing exceptions which could, optionally, later be picked up by the another (e.g. http) protocol.

Minor WebNetCPU gui restyling -- reduced empty whitespace when/if no animation of the normalised coefficients is present.

Minor WebNetCPU gui default-option change -- defaulting to "strip'n'zip" (for usecases when users are over slow Internet connection, plus this will also implicitly default to testing more functionality). Later on may revert back...