Simple descriptor tests.
Add package info files.
Clean check style warnings.
Merge branch 'master' of github.com:Weltraumschaf/darcs-plugin
Update change log.
Refactor change set.

- always compute combined paths
- fix checkstyle warnings
- improve equals implementation
Refactor parser tests.
Add patch w/ comment and removed file.
Test parsing of byte array stream. Clean the SAX handler.
Code cleaning.