Factored out HTML description replacement code and merged some fixes and cleanup for it from the avherald branch.
Added organization text to the index, following the change in the avherald branch.
Moved Wikipedia base URL constant from backend config file to Wikipedia history domain file.
Added unstemmed predicate to index.
Added predicate to titles in description list.
Sentence field and use of sentence field instead of full description in the frontend event listing.
Better absolute URL detection in description generation.
More flexible system for replacements in description HTML; bolded predicate in description HTML; changed title in description list to be the event root.
Fix so the frontend release output has the right path for the Glyphicons file.
Added Glyphicons to about page credits.
Renamed 'indexing' config file to be a 'domain' config file.
Typo fix.
Refactoring frontend config files to seperate data domain and installation specific parts.
Allow config to specify multiple partial HTML files to include on the about page.
Merge branch 'refactoringbuildindex' into avherald, including the new description HTML replacement system and the config file refactoring.

Conflicts:
	frontend/about.html
Comment fix.
Merge branch 'refactoringbuildindex' into avherald