Update manual, unit tests, and add some fixes.

Update manual, unit tests, and add some fixes.

- Uncomment some unit tests and update them.
- Rename server.enabled flag to server.disabled, and update the flows affected by this update.
- Update version references to 0.0.1-beta.
- Update manual (man).
- Include automake as a Debian dependency.
- Validate PDU length received vs real bytes length received.
- Don't die if the PDU reader gets less bytes than what's expected.
- Remove 'crl_set' from rpp.c since the 'crl' is a pointer (the flag isn't necessary).
- Don't set SLURM comments as 'char const *', just as 'char *'.
- Print the ROAs to 'output.roa' after SLURM has been applied, or even when an error stopped validation (only the ROAs fetched to that point are printed).