added docker-sbt plugin
added check to make sure docker only run when Docker.settings is included
it's building an image not a container
bumping version
simplified this if statement
added docker.settings info to readme
this is bumped after a PR
Merge pull request #18 from Banno/docker

Add docker-sbt plugin
Merge branch 'sbt-13' into 1.4.x

Conflicts:
	project/Build.scala
bumping after release for next dev cycle
Merge branch 'sbt-13' into 1.4.x

Conflicts:
	project/Build.scala