[Freeciv-Dev] [PATCH] more small directional cleanups

[Jason Dorje Short <jshort@xxxxxxxxxxxxx>]

Unfortunately, I appear to have missed at least one instance of "magic"
code to handle the directional system in my previous patch.  A new patch
fixes this, as well as cleaning up new magic code that I introduced:
ftp://ftp.freeciv.org/freeciv/incoming/dir-patch2-1.diff.

A follow-up to this patch replaces and unifies the current directional
system by using the DIR_DX2 system instead of the current (DIR_D[XY])
(and removing DIR_D[XY]2 in the process):
ftp://ftp.freeciv.org/freeciv/incoming/dir-patch3-1.diff.

Yet another tiny patch replaces a few simple instances of
map_adjust_x/map_adjust_y with normalize_map_pos.  I've had this one
sitting around for a while, but nobody else's changes seem to have been
committed yet so here it is:
ftp://ftp.freeciv.org/freeciv/incoming/dir-patch4-1.diff.  (It's a bit
of a misnomer.)

Each patch has a longer explanation included.  All have been tested
under an all-AI game (although this should be unnecessary).

jason