Fix for HEAP tables with many rows deleted.
Add '' arround database names in SHOW GRANT


Docs/manual.texi:
  Fixed symlink examples.
heap/hp_rfirst.c:
  Remove not needed patch.
mysql-test/r/heap.result:
  Added test case for HEAP + many deletes
mysql-test/t/heap.test:
  Added test case for HEAP + many deletes
mysys/mf_loadpath.c:
  Resolve path's even if they don't end in '/'
scripts/mysqldumpslow.sh:
  Fix for new dump format.
sql/handler.cc:
  Fix for HEAP tables with many rows deleted.
sql/sql_acl.cc:
  Add '' arround database names in SHOW GRANT