include borders of objects in the generated image

[l29ah]

test case:

union() {
    square([10, 10]);
    translate([10, 5])
        square([10, 20]);
}

[julialongtin]

you got a command line to go with this test case, or a description of what it's supposed to do? :)

[l29ah]

Just compare the output with the patch and without it.