GUACAMOLE-928: Keep all build artifacts of Docker image within /usr/local/guacamole, including FreeRDP plugins.
GUACAMOLE-928: Keep all build artifacts of Docker image within /usr/local/guacamole, including FreeRDP plugins.

apache/guacamole-server,glyptodon/guacamole-server,mike-jumper/incubator-guacamole-server,apache/guacamole-server,mike-jumper/incubator-guacamole-server,glyptodon/guacamole-server,glyptodon/guacamole-server,mike-jumper/incubator-guacamole-server,apache/guacamole-server,mike-jumper/incubator-guacamole-server