Fix layout issues
Log authentication informations
Fix Tesseract command line recognition
Better error log in OCR failure
OCR better error handling
jcifs system properties default value are setted only if they are not
explicitely present
Working on OCR error handling
Handle empty tesseract results
Ghostscript returned text is logged
Improve error login with external process
Fix #862
Support of tesseract 3.03
Update POI
Fix OCR highlighting issues.
Merge pull request #867 from emmanuel-keller/1.6

Bug fix and improvement