Get rid of I which was used for debugging
Fix error in amount of arguments.

* src/manualRosetteDetect/analyzeImgRosette.m(analyzeImgRosette): segmentFunc
receives three instead of four arguments.
Draw the rosette numbers on the axis

* src/manualRosetteDetect/rosettedetect_gui.m(figure1_WindowButtonDownFcn):
Use text to draw the rosette id when user creates square.
(button_press_on_line): Change the rosetted id on the axis when user does the
change.
(draw_lines): Redraw rosette id after user interaction.
Fix bug.

Make sure that the mask we detect actually has positive pixels.
* src/manualRosetteDetect/segmentRosette_mask.m(segmentRosette_mask): Check to
see if the mask contains at least one positive pixel.