Version 2.0.15

API:

• No Changes

Server:

• Allow multiple cors headers via separate config settings, see here. (#299 via #301 by @StewartThomson)
• Docker: Set time zone with TZ environment variable (only gotify/server) (#274 via e9c9a6e)

UI:

• Add responsive ui (#281 by @yasakbulut)
• Open github link in new tab (#275 via #294 by @StewartThomson)

Update to packr/v2 (#277)