New features

• Update Leaflet to 1.0.3 (#169)
• Update Leaflet-draw to 0.4.0 (#169)
• Update Proj4Leaflet to 1.0.0 (#169)
• Made static calls lazy, to fix issues with non-default STATICFILES_STORAGE (#149)
• Add example application (#168)

Bug fixes

• Use SpatiaLite library path from environment variable for running test (#173)
• Fix max zoom level (#165)
• Add SPATIAL_EXTENT default value to the default settings (#167)

Many thanks to @KostyaEsmukov, @cleder, @sikmir and @seav for their contributions!