v0.17.0

What's Changed

• Handle 407 Proxy-Authenticate header with digest invite by @AnshulMalik in #68
• SIP Timers are exposed
• dialog.Close() only removes it self from shared map and deos not terminate state. Bye must be handled. Source of race and bad call state

New Contributors

• @AnshulMalik made their first contribution in #68

Full Changelog: v0.16.1...v0.17.0