Version 0.4.0 release

Performance enhancements of 15-45% by reducing internal array allocations, incorporating proposed changes by anowacki.

The following changes are now in place:

• Return tuples instead of 1x2 arrays in internal functions
• Return a tuple instead of a 1x2 array for public-facing functions when called with a single point

Version 0.3.1 release

Minor bugfix - added exports for convert_bng_nothread and convert_lonlat_nothread functions.

Version 0.3.0 release

This release includes optional multi-threading functionality for high performance.

Version 0.2.0 release

First public release.

Version 0.1.2 release

Performance enhancements and minor fixes.

Version 0.1.1 release

Updates to convert_to_ll algorithm and relax test criteria to allow 5 marginal cases.

All tests now pass @ precision <2 mm for eastings,northings and 8.d.p for longitude,latitude.

Version 0.1.0 release

Initial release.