Adjusted help message indentation.

Signed-off-by: Vlad Velici <vlad.velici@gmail.com>
Fixed a null pointer in RDF writer.

When writing an ExtractedLicence using AnyLicence it wouldn't
call ExtrLicInfo and return a null ID instead. Now fixed.

Signed-off-by: Vlad Velici <vlad.velici@gmail.com>
More test for the RDF parser and bugfixes.

Signed-off-by: Vlad Velici <vlad.velici@gmail.com>