This gives the handler more optimization possiblities and is needed for NDB cluster
Fixed not-initialized memory error detected by valgrind


mysql-test/mysql-test-run.sh:
  Fixed address to manual page
mysql-test/r/gis-rtree.result:
  Added test to show fatal error in GIS
mysql-test/r/grant.result:
  New tests
mysql-test/t/gis-rtree.test:
  New tests
mysql-test/t/grant.test:
  New tests
sql/handler.cc:
  Moved reading of ranges from opt_range.cc to handler.cc
  This gives the handler more optimization possiblities and is needed for NDB cluster
sql/handler.h:
  Moved reading of ranges from opt_range.cc to handler.cc
  T
sql/opt_range.cc:
  Moved reading of ranges from opt_range.cc to handler.cc
  Simplified GIS get_next() handling
  Indentation cleanups
sql/opt_range.h:
  Removed not needed cmp_next()
  Added new QUICK_SELECT method for GIS keys to make code for normal keys easier and faster
sql/sql_select.cc:
  Fixed wrong handling of usable-keys in test_if_skip_sort_order (not fatal, just a warning from valgrind)
  Added DBUG
  Cleaned up comments