Added tesseract OCR  (#20)
refactored for bookpages model object (will be searchable)  (#20)
Added book page ocr capability  (#20)
Added book page import  (#20)
Updated thumbnail addition so it does not fail on non scanned books
Installed django-haystack and Whoosh (#21)
Simplified thumbnail url lookup (#21)
Added BookPage view and entry from book page into book reader at appropriate page (#21)
Integrated within book page searching  (#21)
importer page updates tolerate missing image files (skip them)
tidied form (#21)