Use &: syntax
Output of indexed XML files is handled by IndexableCollectionXmlWriter.
IndexableCollection document loading refactor.
Extract paragraph content generation from document scoring
Nicer content element ID generation.
Move note about programlisting tags to TODO
Formatting
Private attr_readers are silly
Moved all XML indexterm insertion to IndextermInserter
Extracted paragraph range indentification into RelevantParagraphIndexFinder