Merge dev to master for 0.12.0 (#174)

[helto4real]

• Api support read only (Api support read only #165)

• Adds admin site to docker container (Adds admin site to docker container #166)

• All kinds of wierd changes

• Pin the version of the admin site

• no warn

• ca-certs

• use wget

• fail

• Cleanup apt in Dockerfile (Cleanup apt in Dockerfile #168)

• Bump admin site version (Bump admin site version #169)

• Bump Admin to 1.2.0 (Bump Admin to 1.2.0 #171)

• Bump admin to 1.2.1 (Bump admin to 1.2.1 #172)

Co-authored-by: Tomas Hellström tomas.hellstrom@yahoo.se

Breaking change

Proposed change

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the [development checklist][dev-checklist]
• The code compiles without warnings (code quality chek)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io