Add SPM::Util.
Update SPM::Util::Num to use functions from SPM::Util.
Move syslog code into separate module.

Moved syslog functions from SPM::Daemon to new
module SPM::Syslog.
Replace create_netflowd_db.sh with netflowd_util.
Initial clean up to convert to Dist::Zilla.
Change required Perl version.
Move database code from netflowd into
App::Netflowd::Database module.
Update netflowd to use SPM::Syslog.
Add module for App::Netflowd::Database exceptions.
Update App::Netflowd::Database to use exceptions.