Add mapping for xml syntax highlighting
Extracted code formatter error handling to separate step & stat
Implement loader for new rtfm metadata
Update ConversionMetadataHtmlTransformer to inject destination metadata
Convert elapsed minutes to an integer
Implement PageTreeLoader to handle loading of ajax navigation trees

PageTreeHtmlTransformer is the managing class
Add some stats to PageTreeLoader
Change cache path to address errors due to long file paths
Implement PageTreeCleaner to clean up confluence plugin_pagetree
Add transformation check during pagetree cleanup