Update information (version 1.0 --> version 2.0):

This is version 2.0 of MASSACRE.WAD.
This is what I've changed:

   - I added some sectors in MAP03.
   - I fixed the blockmap-errors in MAP03.
   - I fixed some HOMs in MAP03.
     (I couldn't fix all of them, though. There are still 1 or 2 minor HOMs.)
   - I optimized the node-tree and the reject-map and added some fx.
     (now all 3 MAPs are 100% optimized)
   - I removed all the unused stuff (and added new - used - stuff).
   - I replaced 5 more sounds.
   - I added a music-track to MAP03 and updated GMEGALX.WAD.
   - I recorded 3 demos.
   - I tested MAP03 (previously untested).

Please replace all old MASSACRE versions with this one.
