v0.20.0

Changes

Docker get Ziti ID from env var instead of mounted file @qrkourier (#510)

Also, start using Ziti env var names mapped to existing NF names e.g. ZITI_ENROLL_TOKEN instead of NF_REG_TOKEN while preserving backwards compat.

close underlay connection for dns queries as soon as requests are competed @scareything (#505)

closes #504

update ziti-sdk-c to 0.30.0 @scareything (#507)

brings in uv-mbed 0.14.11 to fix SEGV when reconnecting to edge routers and/or controller.

Feature/systemd bin path overrides @sabedevops (#506)

• Allow location of resolver binaries to be overridden at build time
• Adjusts logging for handled errors
• Fixes misc misleading error

add some documentation for Docker Compose @qrkourier (#500)

set cmake variables correctly in opwrt build script @scareything (#501)