made grid bigger
switch to larger grid (cm) when zooming out
fixed pin size
anchors can now resize pin
fixed hundredth_mil_to_nm conversion
pad line parsing using parse_length
implemented soldermask for pins
implemented soldermask for pads
using mask_margin variable instead of mask_diameter/thickness
added 'bear' favicon
replaced favicon
change anchor size (when updated) depending on zoom level
added items to todo
made it possible to zoom further out