Added missing SASL/SSL dependencies
Ignore .libs folders for git

Conflicts:
	Makefile.am
Refactored unecessary code in signals_add_handlers
Spawn early
Otherwise interrupting signals can prevent master from reaching the desired
number of workers in a timely manner.
Make sure signals wake up master as fast as possible
Especially on systems that, unlike Linux and as allowed by POSIX specs, do honor
the signals SA_RESTART flag upon select/pselect.