Fix compilation warnings
Debug antenna improvments
- transfer dump formating service from ruc_buffer_debug to uma_dbg
- add an uma_dbg_service that gives a temporary buffer address
New signal handler that handles the core files
A new signal handler keeps onky a given number of core files per application
on disk and removes the oldest ones. The application can register callbacks
to be called in case of a crash and in case of a hangup signal is received.
The deamon_start() service has been modified not to use its own signal handler
but to rather use this new service.