Bump version number to 2.0.0

Merge branch 'release/1.1.3' into master-js

Merge pull request ddohler#30 from ddohler/release/1.1.2

Release/1.1.2

Bump version number to 1.1.1

Bump version number to 1.1.0

Add package.json

Switch to WASM by default

Update README and add examples README

Reduce compiled Javascript size

Export functions for inspecting GeoTIFFs

Also adds an example for using gdal.js with WebWorkers.