Revert "disabled opencv windows"

This reverts commit 4cc0a0828a18cbd729fec9ab36438ac8a968f11a.
Ref #92 - Added visualization for detected Stones.
Ref #100 - Editing getBoardLines(..) so that not only the line starts defines a line but also the line ends matter.

Known Bug: Intersections are now to different, so getBoardCoordMapFor(...) throws an error.
[refs #79] hardened the automatic board detection algorithm, if anything goes wrong it just stops and doesn't modify the p0, ..., p3 parameters
[fixes #100] The intersection points to board coords mapping can now handle y-values that vary a bit
Stone diameter isn't needed in intersection points mapping and black stone detection
Fixed function calls that were changed in the last commit
[refs #79] Commented the getBoardCoordMapFor() function and made the board_size extraction a bit more robust
Merge branch 'master' of github.com:augmented-go/augmented-go into Go_Scanner
Ref #10 - fixed bug that lines had false x values. added some ideas for white stones detection. Improved line detection! It's now possible to detect a row of stones with min. 2 intersections free.
[refs #10] Changed white stone detection to detect all stones instead. We then then calculate the white stones by subtracting the black ones from all stones.
The all stone detection looks for gaps within the detected grid to find stones.
[refs #76] After initializing the backend with a setup that contains stones, we now allow any player to make a move.
[refs #80] Added game update result to the gameDataChanged signal
Ref #10 - Refactoring of Go_Scanner. Splitted Scanner_implementation into it's components detect_board, detect_lines_intersections and detect_stones.
Merge branch 'master' into Go_Scanner
[refs #79] Fixed crashes when not enough board lines could be detected.
Merge branch 'Go_Scanner' of github.com:augmented-go/augmented-go into Go_Scanner
Made a few debug statements more accurate.
ref #92 - added function setDebugImage() and setNormalImage() within the Scanner Class.
Merge branch 'Go_Scanner' of github.com:augmented-go/augmented-go into Go_Scanner

Conflicts:
	Go_Scanner/Scanner.cpp