Added maven pom.xml files.
Merge branch 'java-bootstrap' into mvn-build
Add version number to build-helper-maven-plugin.
Add target directory to gitignore.
Export strategoxt.jar
Fixes for two-stage build and cleanup.
Made strj and the generator Java projects. Remove dependence on strategoxt.jar for everything.
Remove generated manifest
Remove versions from external dependencies and plugins, are now managed by the parent pom.
Don't use src-gen source folder.
Merge branch 'java-bootstrap' into mvn-build