Code review comment for ~morphis/snappy-hwe-snaps/+git/wifi-ap:no-external-go-deps

@Jim: With Go you normally fetch all dependencies in source code form from a git repository like on github.com. This is not possible in our CI builds or even .deb builds on launchpad. Therefor Ubuntu provides necessary Go dependencies packaged in the archive which install all source code to /usr/share/gocode which then can be use as part of your GOPATH environment and avoids fetching the source code from a remote git repository.