Add debian support
Added support for debian /etc/default/snmpd file

Additional changes:
  - support for community strings with multiple sources
  - content of options in snmpdargs and trapdargs
  - added snmpdrun/trapdrun/mibs for /etc/default/snmpd
remove 'lookup' from map.jinja
Merge pull request #5 from keesbos/debian-support

Add debian support