[refs #77] Added a slot for manual selection of the board.
Merge branch 'master' into #77_triggering_manual_board_selection
[refs #77 #74] connected the method for manually selecting the board to the actual implementation
[refs #77 #74] added the methods for an automatic board detection
moved gitignore for build folder to repo root (you can safely delete the complete build folder now if you want to reset your build)
[refs #84] added function to play a move, not fully complete yet
removed dummy file
Merge pull request #88 from augmented-go/#77_triggering_manual_board_selection

[Closes #77] triggering manual and automatic board selection/detection
enabled debug opencv windows and changed main of scanner test to do automatic conversion
renamed Scanner files for better clarity
adjusted interfaces for image scanning
setting the board size
added mapping from intersection points to board coordinates and moved some parts into a header file
[refs #74] added menu entry for board detection (manually or automatically)
dumping histograms to file system
refs #81: first steps to integrate mouseMove and mouseClick events
Merge branch '#81_Virtual_GoGame' of https://github.com/augmented-go/augmented-go into #81_Virtual_GoGame
ref #81 implemented ghost_stone and signal to backend. still issues with brush
manually trigger the first scanning to have the first camera picture immediately ready and we don't have to wait for the timer
prototyped white stone detection, but needs some work to be done...