v1.18 (31)

# Fix
- Fix lock when parsing broken GPX files

# Add
- Support POI databases from [OpenAndroMaps](https://www.openandromaps.org)
- Add [OpenTopoMap](https://opentopomap.org/) and [OpenCycleMap](https://www.opencyclemap.org/) #77 #6

# Change
- Improve configuration of offline maps
- Improve exception handling when loading files
- Change file name pattern to YYYY_MM_DD_hh_mm.gpx #95

