Shadow Editor v0.5.3

• Release Date: June 14, 2020
• Update Logs:

1. Fix bugs of uploading models and publishing scenes on windows.
2. Add links to open source projects.
3. THREE.js math module has translated into golang, Click for detail.
4. Use Travis CI as a continuous integration tool.
5. Comment out ServiceWorker in the index.html file because it caused a lot of trouble.