Faster binary access, binary and count functions, ordered-binary data encoding

The latest point releases include performance improvements for accessing binary data. This should improve performance when using encoding: 'binary'. There are also now dedicated binary methods, getBinary/getBinaryFast that are available for getting binary data even if the store is using a different encoding.

There are now count functions (getCount, getKeysCount, getValuesCount) for faster access to getting a count of entries in a range.

ordered-binary is now available as an encoding option. This may be useful when create index stores that are primarily use to store references to keys in other stores (and this is often done in combination with the dupSort option).