Raise a ConnectionError if the Lucene url returns a 404
LuceneFailed exception still used, restore class
Merge branch 'newlook' into history
Fixing history manipulation to work with new style search box and history.js library
Hide the Loading notification using the jquery ajax always method
Improving code reuse when adding articles
Stop article requests when the search box is empty
Moving to pull in saved searches by get request
Merge branch 'history' into newlook