Merge pull request #51 from ajstanley/7.x

Makes OCR toggleable by user
Merge pull request #52 from ajstanley/7.x

removed 'no ocr' option from selector pages
Add in checks, so orphaned pages will not explode.
Merge pull request #53 from adam-vessey/7.x-UMKC-53

Add in checks, so orphaned pages will not explode.