Osgb

- Removed irritating degree sign from verbose test message (no functional change)
- Make parse_landranger_grid behave better in scalar context
- Improve useability of parse_grid
- Correct GR of SW corner of Landranger Sheet 3
- Further optimize handling of OSTN02 data to prevent data parsing at pod2man time
- Improve documentation
- More example scripts (with notes)

- Optimized handling of OSTN02 data to reduce memory requirements *and* speed it up.

- New version with routines to do adjustment to and from latitude and
longitude coordinates based on the (now ubiquitous) WGS84 model, for
more compatible use with GPS receivers and Google Earth and similar
tools.

- Includes not only fast approximate adjustment as used in most
coordinate tools and devices, but also the definitive-but-slow OSTN02
transformation based on OSGB data

- Step version number

- POD completely revised

- corrected link in POD

- various minor documentation corrections

- general clean up

- made the format and parse routines external to avoid spaghetti connections

- added support for grid references in GPS format (eg TQ 32342 24312)

- Not released