maint: Add new maintainer script for handling releases
maint: Add templating for release emails and markdown news
maint: Start to use click for the CLI
Update manifest to remove missing png paths for highcontrast theme
maint: Add tag and dist commands
maint: Check that we're on a release branch before pulling
maint: Make our subprocess helper abort on failure by default
maint: Add pull command
maint: Prepend to NEWS and open for editing
maint: Add commit helper and de-command-ify pull
maint: Add a push helper and use to complete the NEWS workflow
maint: Add upload command
maint: Add version bump helper
maint: Add instructions in lieu of actual functionality
maint: Update email and markdown commands to write to a file
maint: Fix de-command-ified pull
maint: Fix syntax
maint: Don't re-render news for the tag; use the last entry