0.11.11: more sample apps, further size reduction and better type definition

See the announcement post.

• Add a few more short sample apps to further ease the learning curve:
  • List (~10 lines of code)
  • Stargazers (13 lines of code)
  • Epoch Timestamp Converter (29 lines of code)
  • Keyboard Event Inspector (29 lines of code)
  • Diff (28 lines of code)
• Further reduce the bundle size to 1163 bytes (22 bytes reduction 🎉). With 1163 bytes, VanJS is technically a 1.1kB library (may be back to 1.2kB in future releases with new features). Thanks @icecream17 for offering most of the suggestions.
• Improve the type definitions in van.d.ts file. Thanks @enpitsuLin for the contribution.

See the release announcement: #44