Short edges

[dgud]

Micheus: it was not directed to you, just a general cry for help.

I do not have the math skills to do a real solution, as ggaliens said
these limits are chosen adhoc, but the limits where put in there to solve
real problems.

Having variable (depending on the size of rest of model) limit are not a good solution either since
that would confuse users as well. Sometimes you could create edges that .001 long and sometimes
0.0000001 long.

And even if I got a patch which solved this I would not be certain it would not bring back old bugs.

I rather have gripes in the code, then bugs which crashes wings.