depending on newer sbt-docker adding java opts and stuff
staging files correctly
bumping to dev version (since it wasn't last time)
always taging latest built as latest
allowing JAVA_OPTS to override heap sizes
removing health/jmx port config and just adding to exposedPorts
Making docker more apt to cache intermediate steps

since docker cares about timestamps for caching and sbt-docker rmr's the stage directory
pushing the more volatile banno deps to the end
adding excuses
Merge pull request #23 from Banno/docker-updates

depending on newer sbt-docker adding java opts and stuff