Changes:

• Added disk overflow protection (available-disk-space-threshold config property)
• Added ability to configure static markers on map (static-markers config property)
• Added ability to configure map size in pixels (e.g. 127x127, 64x64; map-pixel-size config property)
• Added automatic checking for updates (check-for-updates config property)
• Added new PlaceholderAPI placeholders - nminimap_stats_disk_total_space and nminimap_stats_disk_free_space
• Added Gzip cache compression
• Now plugin no longer loads and renders chunks outside world border
• Fixed bug with incorrect old cache deletion.