[Lemon-devel] Renaming basic classes

[Alpár Jüttner]

> The source() and target() functions could be changed in the undirected graphs 
> to first() and second(), or anode() and bnode().

I do not support this. I agree that source() and target() of an
undirected edge semms a bit strange for the first time, but they aren't
really confusing.
So it isn't worth introducing new function names for that (first() and
second()). On the other hand I find the use of anode() and bnode() for
this purpose very misleading.

Alpar