anchor.diff:  # Declare Arguments
   ARG NODE_VERSION
   ARG METEOR_RELEASE
  +ARG METEOR_EDGE
   ARG NPM_VERSION
   ARG ARCHITECTURE
   ARG SRC_PATH
  
positive.code:     ( \
        gosu wekan:wekan git clone --recursive git://github.com/meteor/meteor.git /home/wekan/.meteor && \
        cd /home/wekan/.meteor && \
        gosu wekan:wekan git checkout release/METEOR@1.4.4-rc.9 && \
        gosu wekan /home/wekan/.meteor/meteor -- help \
      ) && \
      ###########################
  
negative.code: ENV GOSU_VERSION=1.10
  ENV NODE_VERSION ${NODE_VERSION:-v6.10.2}
  ENV METEOR_RELEASE ${METEOR_RELEASE:-1.4.5}
  ENV METEOR_EDGE ${METEOR_EDGE:-1.4.4-rc.9}
  ENV NPM_VERSION ${NPM_VERSION:-3.10.10}
  ENV ARCHITECTURE ${ARCHITECTURE:-linux-x64}
  ENV SRC_PATH ${SRC_PATH:-./}
  