[rilmodem] Remove libwaudio dependency.
[rilmodem] Don't update sim_data if pointer is NULL.

Fix segfault if function is called with NULL sim_data.
[rilmodem] Use empty strings instead of NULL for debug.

More strict compiler flags don't like it.
[ril] Fix segfault when wrong type pointer used.
[gril] Remove duplicate io channel setup functions.

Io channel is setup always when GRilIO is created and duplicate calls
break debug logging.
[rpm] Update packaging, include dundee.service.
Merge pull request #8 from jusa/dev

Build fixes, fixed segfault and logging.