added Docker script for Java 7
commented out universe (seems already enabled in apt sources.list)
first commit of groovy Dockerfile
Added preliminary Dockerfile for Groovy
Added Dockerfile for gvm
Added README.md for gvm
Fixed title in GVM README.md
Updated Groovy Dockerfile
Added VOLUME for external grape.root folder
Fixed indentation
Merge branch '3.5.0'
Added Gitblit Dockerfile
Merge branch '3.5.0'
Merge branch '3.5.0'
Added README.md for java
Reorganized Dockerfile in order to reduce Docker layers and remove
useless space
Refactored GVM Dockerfile for reducing Docker layers
moved main Groovy Dockerfile from master to branch 2.3
Moved main Groovy README from master to branch 2.3
Merge branch '7'