Map layers
- New layers: slope, aspect, ruggedness index, sightings (field guide), night, and solar/lunar eclipse
- Layer management (add, remove, reorder)
- Hillshade multi-direction shading option
- Tide phase display option
- Fling gesture support
- Improve performance
- Tap beacon for details rather than navigating
Map
- Adjust the display time for time-dependent layers
Misc
- Improve error handling