Task #8437: Create /opt/lofar/var/{log,run} in the Docker image, and transfer ownership of /opt to calling user to allow him to write to /opt/lofar/var.

Task #9052: Generate ~/.subversion/servers in-line to prevent Docker from invalidating the cache half way in the Dockerfile

Task #9408: Let template depend on versionXXXX executables instead of presence of svn branch at runtime