v2.3.4

What's Changed

• Use Content-Length header more often. by @floitsch in #102
• Fix null pointer in WebSocket code by @erikcorry in #110
• Support ping and pong on WebSockets. by @erikcorry in #111
• Rename 'interface' to 'network'. by @floitsch in #112
• Add more errors for the 'is_close_exception' detection by @floitsch in #114

Full Changelog: v2.3.3...v2.3.4