GCode comments will now include the name of the presets used.
Bed temperature ramp-down working; needs more thorough testing.
Replaced POSIX(floor) with a cast to int() for rounding the layers and
temperatures in the bed temperature ramp-down.
Cleanup of comments and extra print statements w.r.t. bed ramp-down.
Added command line options to slic3r.pl for the two HBP ramp-down
paramters.
Merge branch gcode_presets
Merge branch 'temp_ramp_down'
Missing preset options now reset to their defaults on load.