#28 0.65.0beta5; under mouse placement

[Mike]

This patch adds a new window placement method to
blackbox. The functionality is similar to that of
enlightenment - any new windows are created under the
mouse pointer.

Summary of changes:

This is an updated patch for beta5, mainly posted
because previous patches do not cleanly apply, and a
few general changes to the Configmenu.

This patch is smaller then it's predecessors, mainly
because it stays with the authors style (a few big
switch()'s gone), and doesn't add as much unneeded
garbage (Row/ColNone options for *PlacementDirection).

[Mike]

0.65.0beta5; under mouse placement