Added maven pom.xml files.
Update references to Stratego-Sugar.def and ATerm.def.
Update generated files
Update gitignores
Adapt to new language build.
Fixes for two-stage build and cleanup.
Made strj and the generator Java projects. Remove dependence on strategoxt.jar for everything.
Update generated build file.
Merge branch 'mvn-build'

Conflicts:
	org.strategoxt.imp.testing.ui/.gitignore
Add project metadata to POM files, required for publishing to the Maven central repository.
fix build files and ignored src-gen folder
covering cases where there is no syntax folder
fix target to generated the pp library
Changes for build script simplification.
Make sure that Eclipse plugins are not installed and deployed.
Don't skip installation and deployment, not required.
Move test listener classes to strategies package, to make sure that they are included in the SPT JAR file. This should fix the test runner not working any more.
fix build files
new build.generated.xml and not using the generated library
Added command-line (Sunshine) version of SPT.
Added SPT test listener service.
Added testrunner core and command-line projects.
Move files to correspond to new project name.
Update generated build file.