v0.16.0

• Add support for http proxies, configuring proxies on the request builder and session, and detecting proxies automatically using environment variables #77 #75 #80
• Implement Read on Response to read bytes from a Response. #79
• Set target in logs created by the crate to make it easier to filter them out #76
• Improve abstraction of TLS interfaces, methods to disable TLS verification are now available for rustls as well #69
• Update multipart and mime crates #78