1. add .vpc extension for load/save automatically
1. add .vpc extension for load/save automatically



git-svn-id: 982d26d634cff20a18fc4ffad3b37e2f8f994aac@67 285c826d-31ef-41a9-a5b6-d2a4949dcdf2

GNS3/vpcs,GNS3/vpcs