More cleanup changes from patches

git-svn-id: http://tesseract-ocr.googlecode.com/svn/trunk@1024 d0cd1f9f-072b-0410-8dd7-cf729c803f20
Added polygonal block outline output to PageIterator

git-svn-id: http://tesseract-ocr.googlecode.com/svn/trunk@1025 d0cd1f9f-072b-0410-8dd7-cf729c803f20
Fixed bugs in scrollview and upgraded piccolo to 3.0

git-svn-id: http://tesseract-ocr.googlecode.com/svn/trunk@1026 d0cd1f9f-072b-0410-8dd7-cf729c803f20