Upgrade to Leptonica 1.70 (unpatched, will not compile).
Re-applied patches along with modifications for MSVS.
Restore Image#Add() clipping behavior for 32bpp images by using pixAddRGB() instead of a patched pixAddGray()
TesseractOCR 3.03rc1
Removed non-required file.
Merge branch 'master' into tesseract303
Fix include.
Merge branch 'tesseract303'