Fixed fmemopen portability problem

git-svn-id: http://tesseract-ocr.googlecode.com/svn/trunk@890 d0cd1f9f-072b-0410-8dd7-cf729c803f20
fix declaration of ClearResults() (VC++)

git-svn-id: http://tesseract-ocr.googlecode.com/svn/trunk@891 d0cd1f9f-072b-0410-8dd7-cf729c803f20