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fixed !ENABLE on the stepper driver
fixed error in confusion between SHDN and CLR. Also changed LED resistor values to 1K and also changed charge led to be 3.3V
fixed the shutdown circuit to use one of the gpio pins. added pullldown resistor on the gumstix side of the level converter. routed this to the shdn pins of the power supplies
added scoutfly_rev3 to accomplish changes for the next revision of the boardAlready removed switch to swtich power supply sources. In the process offixing the pushbutton control circuit