Version 0.78d-dc42

M116 now accepts a P parameter so that you can wait just for the heaters
associated with a particular tool
M220 and M221 commands report the current override factor if no S
parameter is provided
Multiple "Filament used" values from gcode files are reported to the web
interface
Active and standby temperatures for all heaters are reported to the web
interface
Bug fix: defining a tool with no drives or no extruders would cause it
to use a collection of drives or extruders depending on the values of
un-initialised array elements
Bug fix: running a macro file would reset the extruder position to a
value depending on what extrusion (if any) was requested by the last
movement command in the macro file
Added binary