New feature:
- Possible to display words instead of letters on the cardinal direction points on the windrose. Fixes #82
Its not perfect, because of the margin used in combination with auto rotation and the display of corner info.
Some text can overlap.
Fixes:
- Matching strategy time-frame did not work for direction sensor using letters. Fixes: #64
- The direction_letters property wasn't used, instead the cardinal_direction_letters property was also used to parse states.