Serializing: fix serializing of Work status
Serializing: fix serializing of Work status

The PrintHandler::value() does not overload for const char * and thus treating
such arguments as int which leads to wrong results.

Signed-off-by: Jan Viktorin <3eab6ac54c005c4408f608556a6663b7f2abede7@fit.vutbr.cz>

BeeeOn/server,BeeeOn/server,BeeeOn/server,BeeeOn/server