Release 1.2.1

Notable Changes:

• Support node-v14.x
• Patch http by default

Commits:

• [81b4ecd] src: add os version in diag report
• [1bef00a] src: update for compatibility with node-v14.x
• [d967467] src: some optimization
• [f693d41] readme: update for new organization
• [db06f94] src: enable monkey-patch of the http module by default