Imported using git-ubuntu import.
Changelog parent: a23a770ff49c7bf90aa9a8dd3ab556e842ec9558
New changelog entries:
* live-build/ubuntu-core/hooks/400-create-apt-get-warning.binary,
500-create-xdg-wrapper.binary, 700-classic-dir.binary:
- Correct some syntax errors in the ubuntu-core snap hooks.
- Create a desktop entry and some mimetype associations for xdg-open in
ubuntu-core. That way interacting with web, email and documentations
urls in a snap should do the right thing.