Release 5.6

[a-m-s]

Integration fix. Update for Chromium. Thumb actions.

[jiri-janousek]

Thanks, @a-m-s. I could make a release this weekend or earlier.

[jiri-janousek]

A few tasks to do:

• [ ] You use async methods introduced in Nuvola 4.8 but the API version in metadata is still 3.0. Please set API in metadata to 4.8+ and remove Nuvola.checkVersion checks and @API 4.5 comments from integrate.js.
• [ ] I'm slowly converting my scripts to Standard JS code style. Could you convert your script too? You can use standard --fix from the Nuvola ADK. Once all scripts are ported, I'd like to setup automatic style checks.
• [ ] There have been some changed in the ADK.

[a-m-s]

OK, I think those tasks are done now.

[jiri-janousek]

Thanks, released :+1:

[jiri-janousek]

I've also updated copyright info and removed trailing space in metadata.in.json (a bug in Nuvola SDK).