[DebianGIS] Added OpenCpn to package list

[Hamish <hamish_b@yahoo.com>]

Hi,

fyi I've added OpenCpn to the wiki to-be-packaged list.


website:  http://www.opencpn.org
ITP url:  http://bugs.debian.org/538067


It's GPS boat navigation software using wx.


volunteers welcome.


regards,
Hamish