Parametric Servo Bracket

derived from this... http://www.thingiverse.com/thing:13850

which was derived from http://www.thingiverse.com/thing:9915

existing parametric variables

servo width - servo_width

added and/or fixed parametric variables for;

servo length - servo_length
base width - base_width : the width of the base plate of the bracket
base length - base_length : the length of the base plate of the bracket
base thickness - base_thickness : the thickness of the base plate of