Formatting

Rename Rfc5545Duration constructor methods

Use a `from_` prefix for constructors and `with_` for methods that
overwrite a field.

Add api to create Durations

Typo

Minor linting tweaks

Slight rewording

Refactor for missing timezones branch

This is already done

Make filtering more flexible and efficient

Implement alarms relative to end dates

valarmd: Improve error handling and refactor

Bump hardcoded version

Minor linting tweaks

Improve documentation for icalendar_duration

Improve metadata for icalendar_duration package

Reduce log level of this event

This happens VERY frequently, don't want this even in debug mode.

Mention pending extension

Use a proper logger for warnings/errors

Pending TODO for warnings

Simplify expression