big BMG changes committed

[Luka <luka@MIT.EDU>]

i committed my huge reorg of walkthru/BMG just now.  still
some rough edges but here's the quick instructions for anyone
who wants to go digging in the near-term.

first:

  cd BMG/src
  make
  cp bmg ../bin
  
then find, build, and copy into that same bindir the following
binaries from various places they are built:

 config_bmg.dat
 DLFiles
 GetFiles
 GetNames
 ReadURL.class
 ReadURL.java
 acad2ug
 bind
 contours
 dejunk
 ug2iv
 walls
 ugvmerge

most are under mit/src/*blah*, and ugvmerge is under src/ugvmerge and
has a broken makefile which i've fixed but haven't checked in the
changes to yet -- will get there momentarily i think.

and then run:

  cd bmg/bin
  bmg

and it runs.  as for whether it works, anybody's guess.

oh yeah, and the concept of a "mouseclick" in this app appears to
be right button, not left.  to help you get off on the, uh, left foot,
to discovering the rest of this UI which i'm just happy is no longer
my worry. :)

vitaly has info about the two papers talking about BMG, which is where
to go for more of a map on what all is inside this heap functionally
and UI-wise, since it's not exactly self-documenting.  so as soon as i
get the ugvmerge fix in, and assuming a clean co builds and runs like
i expect, i call my work on this done, and back to cool viz stuff i go.

-pl