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about: add important contributors
timeline/elements: don't show all the keyframes when group selecting.

Optimization to workaround clutter being sluggish.
timeline/previewers: don't try to show waveforms when pixelWidth == 0.

Otherwise we divided by zero.
timeline: commit for each container ungrouping.
project: no need to set auto_transition after starting to extract timeline.
pipeline: when not in RENDER, the pipeline can and must recover

... from errors.
render dialog: Don't show keyframe button for codec properties.
waveforms: take in_point and duration into account.
elements: let the backend update keyframes correctly.
project: cast width and height when they are set through properties.
GstDynamicWidget: port combobox to Gtk3 API.
dogtail tests: Don't let the "project" test pollute /tmp
dogtail tests: Ensure the media library's iconview mode is used for some tests
dogtail tests: Allow import_media to handle empty search results better
dogtail tests: Make the "project" test count iconview items properly
dogtail tests: Initial cleanup and refactoring of the "project" test
dogtail tests: Refactor the project settings test and correct wrong assumptions

As resolution changed, pixel aspect ratio was also meant to change at the end.
The test doesn't pass, but that's because of bug #706544.