Now 64-bit capable

Steve Meifert's changes have fixed various issues seen on 64 bit systems.

Big Thanks to Steve for his input.

UTF8 FTW

Tests have been added to ensure that UTF8 data, posted to the app, or generated by OCR is stored and rendered correctly by the API and application frontend.

I thought, I may have some trouble with this, but it looks like everything is in order and no (only very minimal) changes are required. This opens the door for full multi-language support, that is planned for the future.