Blog post: Leveraging Express for a more robust HTTP processing

[bajtos]

Write a blog post describing

• the changes made as part of the epic
  • Change (req, res) pair to a single http context object #1292
  • refactor(rest): use Express req/res types #1326 (etc.)
  • Leverage CORS middleware instead of the current workaround (minimal refactoring)
  • HTTP endpoint factory #1331 HTTP endpoint factory
• our motivation behind these changes
• what it means for LB4 app and extension developers, how to upgrade

[bajtos]

In progress.

[dhmlau]

Closing it as done. https://strongloop.com/strongblog/loopback4-improves-inbound-http-processing