v1.2

This will likely be the last release of v1. Most of the commits since the last release have been housekeeping measures. But there are 3 notable feature mentions:

1. Autocomplete on most fields.

   • Locations
     • Region
     • Country
   • People
     • Club
   • Trips
     • Cave
     • Names

   The Names field is much more complicated than the other fields, and thus will require more work (see issue #10 for more details / progress).

2. Unification of the colour scheme.
   I've dropped the hodge-podge of greens, whites and yellows (It's not an Offaly jersey after all). I've chosen to go with white on black for the moment. But on the v2 roadmap I have ambitions to allow the user to specify colours in the config file.

3. Version information baked into binaries.
   This is so easy to do with Go that I can't actually explain why I was not doing it previously. Now cave-logger -v prints version, commit hash, and build date.