Copyright for plexus-cli source package in Mantic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Source: https://github.com/codehaus-plexus/plexus-cli

Files: *
Copyright: 2001-2007, The Codehaus.
Authors:
  Edwin Punzalan
  Brett Porter brett@apache.org
  Joakim Erdfelt joakim@erdfelt.com
License: Apache-2.0

Files: debian/*
Copyright: 2008, Paul Cager 
License: Apache-2.0

License: Apache-2.0
 On Debian systems, the full text of the Apache-2.0 license
 can be found in the file '/usr/share/common-licenses/Apache-2.0'