re-structured tree to be unzipped in sauer folder (for windows) and added some files that are needed. Also tidied up again weapon.cpp

added autoexec.cfg, some sounds to choose from, friendlist.cfg, the
sounds.cfg that is used in this mod, sauerbraten_aMod.bat to start the
mod, sauerbraten_aMod.cbp (changed compiled executable name to
sauerbraten_aMod)