Added license header
NethServer::Service (adjust): changed return value type to boolean. Refs #2029 #2014

The method now returns a TRUE/FALSE success condition, and sets again
the output parameter "action", passed by reference.
Report errors in exit status code. Refs #2029 #2014
Utility to inspect ptrack dumps. Refs #2029
Split status code by Status and Signal field. Refs #2029

This changes the format of the syslog line, by adding a "Signal" or an
"ExitCode" field if status is non-zero.

The Status field is unchanged.
generic_template_expand action: report exit status code. Refs #2029
Fix esmith::templates::processTemplate() return value. Refs #2029

The return value was undefined with a missing output file.