zipped schematics now read their dimensions from schematic.dat correctly
zipped schematics now read their dimensions from schematic.dat correctly

codewarrior0/pymclevel,ahh2131/mchisel,ahh2131/mchisel,mcedit/pymclevel,codewarrior0/pymclevel,arruda/pymclevel,mcedit/pymclevel,arruda/pymclevel