New records_in_range() interface (similar to read_range())
Macros for faster bitmap handling
Simplify read_range() code (#WL1786)
New general key_cmp() function to compare keys
Fixed spelling of example share and fxed indention.
ha_example.cc:
Fixed spelling of example and removed a few unneeded printf pieces.
my_base.h:
Adde HA_ERR_NOT_IMPLEMENTED at Monty's request