v0.2.2

Fixed a bug of loading shapefile within a directory that has ".". Also, thanks to @xuehongyanL for reporting and fixing this bug.

v0.2.1

1. Add configurable style
2. Add option to render thematic map with different colors, but not represents on UI

v0.2.0

1. Data loading performance improvement
2. Rewrite the logic to load buffers from file
3. Use point cluster to improve render performance on UI
4. Many low level improvements

Add more functions

1. toggle base map
2. shorten major menu name
3. replace logo
4. add recently opened files
5. fixed a bug where the shapefile doesn't exist anymore

General function implemented

1. General UI
2. Visualize shapefile
3. Export to GeoJSON and CSV
4. View properties
5. Identify features
6. Map navigation