Update beust-jcommander to 1.32
Enable debugging output during ITs
Add header to README
Fix dependency generation

Support for different namespaces requires more complicated
delf-dependency resolution mechanism.  Basically, if there is
dependency some self-provided artifacts then generated require should
have the same version and namespace as provided artifact.
Unify user and devel dependency generation
Simplify generation of packagedArtifacts
Avoid NPE in effective packaging rule generator
[test] Add test for installation of a single JAR artifact
[test] Add test for installation of a two JAR artifact
Fix dependency generation for multi-module installations