2.7.141 released July 26, 2000

- hash.h and hash.c split into hash.h/cache.h and hash.c/cache.c
- common reading cache code in reading.c and mouse.c moved to
  cache.c/cache.h
- new functions reading_cache_init() and reading_cache_cleared() in
  cache.c 
- movehash variable no longer global
- configure option --disable-hashing removed together with HASHING
  preprocessor constant
- double_atari_chain2() made static to reading.c
- ATTACK() and DEFEND() macros in patterns/patterns.h renamed to avoid
  name collision
- pow() used to compute effect of shape value in move_reasons.c
- optics.c now includes eyes.h rather than eyes.c
- mkeyes.c revised to finish the graphs array with an all-zero entry
- changed order in top level Makefile.am; engine is now compiled before
  patterns
- extract_fuseki program bugfixed and once more compiled by default
- regress.awk and eval.sh in regression/ revised to deal with negated
  tests 
- new file regression/games/strategy2.sgf
- three new tests in regression/strategy.tst