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Change algorithm to use the circles for transform.

In previous versions the circles were first detected and then the
QR code. Detecting the QR code is very time consumig and does not
achieve better results than detecting the circles only. Therefore, it
was omitted.
Add new data files for testing.
The cropped textbox is now written to file 'output.png'.
Add textbox.png to ignorelist.
Change target number of circles to three.

In previous versions circles were removed from the list of detected
circles until there were only four.
Change the output coordinates to those of the top left circle.
Add another camera input for stereo.
Add average FPS calculation at the end of the run.
Add MATLAB interface files.
Add MATLAB files.
Change readTextbox to readImage and add entire image writing.
Remove unnecessary files.
Merge branch 'testing'

Conflicts:
	.gitignore