add empty concept and exercise description
fix variable naming in method getPostProcessingRules()
add java docs to properties
collected some notes, added plain tex file for concept paper
added some thoughts about possible postprocessing rules
added introduction and problem description to the concept
added approaches to concept
Concept erweitert. Es fehlt noch "Adapting C3PO" section
some corrections in concept
ideas about code changes
final version of concept
Javadoc updated and remove empty lines
add test FITS files
Merge branch 'master' of git@github.com:phoenix147/c3po.git
Fix javadoc typo
add functionality to retain sources from the database by their ID
add toString for debugging
allow Elements to ignore or merge MetadataRecords
Add Drools-Powered Postprocessing Rule for Conflict Resolution
fixed typos
added role for PPT
added LogEntry support to Elements, so that triggerd rules can be logged in the database
added rule for xhtml