Merge pull request #8 from tausten/master

Initial minor updates to fix a bug in unit test code, and allow specification of non-default test image in BaseApiTester.
Fixed project configuration - #10
Added descew functions from leptonica - #11
Bugfix: Check if embedded file exists on disk
Merge pull request #13 from peters/patch-1

Bugfix: Check if embedded file exists on disk
Added support for 1bpp conversion - Fixes #15
Added Otsu binarization function from Leptonica

Wrapped the Binarize.c BinarizeOtsuAdaptiveThreshold from the unmanaged
Leptonica DLL
Merge pull request #19 from jeschergui/master

Addded Otsu binarization
Add GetHOCRText API method
Update to r835
Merge pull request #20 from nguyenq/master

Add hOCR support
Merge remote-tracking branch 'upstream/master'