Collective.documentviewer

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- default OCR to being off since it's pretty slow

- better logging when looking for binary files

- be able to override width of viewer

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- fix uninstall
[vangheem]

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- fix async bug if it wasn't installed
[vangheem]

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- make sure to initialize catalog after db sync
for large PDFs.
[vangheem]

- better integrate with pdfpal and pageturner so
it's easy to upgrade from those products.
[vangheem]

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- fix setting custom quota for async queue
[vangheem]

- fix group view clear button
[vangheem]

- add support for alternative md5sum binary
[vangheem]

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- fix full screen page bug
[vangheem]

- better async integration with quota setting
[vangheem]

- View async queue for conversions
[vangheem]

- index ocr data in portal catalog
[vangheem]

- better pdf group view with search
[vangheem]

- handle large files better
[vangheem]

- check if file has already been converted by storing
hash of the file to check against.
[vangheem]

- be able to remove document viewer conversion tasks
[vangheem]

- add ability to cleanup file storage files for deleted
plone File objects.
[vangheem]