Rudder

We have a (complicated) method that test for version of technique ordering.
It is incorrectly ordering "1.0.1" and "1.0", nor "1.release3" and "1.release10", or "1.3b" and "1.10a". It also doesn't know about a lot of other version things, like "alpha/beta/etc".

I'm not sure about the exact impact, but that ordering is used in a lot of place (in set, for ex). It seems bad to keep it like that.

Also: I wasn't able to understand current algorithm. It seems that it doesn't have a notion of separator after the first one.