made the calibration dot an animated gif also removing some lines of code.
rearranging the vars at the top
adding the calibration image
adding logic to hide the overlay canvas during zoomin
fixing the default iszooming value.
adding an alpha to the drawcircle.
the circle gesture now zooms to an extent.
screen tap now centers the map.
getting rid of unpausegesture.
shaving a few lines.