Version 2.0.7

API:

• Add health api /health (#208)

Server:

• Updated to go 1.13.1 (#221 fixed by #222)
• Fix cert errors in docker (#211 fixed by #212)
• Fix dependency bug which prevented the build (#214 fixed by #216)
• Add gotify/server-arm7 docker build (#218 fixed by #223)

UI:

• Move from npm to yarn (#222)
• Migrate from react-scripts-ts to react-scripts (#222)
• Update some deps (#222)