Merge pull request #13 from TheTimeLord/master

Removed elevator limit and added encoder speed to driver station screen output
Broke aspect ratio up into being the quotient of two height and width variables.
Added a method for finding range, and another for finding average ranges of all detected targets
Added code for automatic targeting to selected targets.
Added comments for rangefinding
Fixed range to work in feet
Debugmode now works off Digital Button 1 on the DS
Fixed conflict in ScraperBike