DJV2: vanhemmat versiot ja versiohistoria

Changes:
• Add an option for showing multiple timelines in compare mode.
• Movies, PNG, and OpenImageIO files are written as 8-bit or 16-bit depending
on the image type.
• Export now has options for specifying the width or a custom size.
• Add a tile layout option to the file browser.
• Add a recent files dialog.
• Add options for clearing recent files.
• The reload shortcut is now Ctrl+R, and the recent files dialog is
Ctrl+Shift+R.
• The Windows packages are signed.

Fixes:
• Fix for the levels of 10-bit and deeper YUV movies read as RGB.
• Fix for playback with audio starting one frame early.
• Fix for thumbnails of files that are overwritten.
• Fix for a crash when a Python script exits on Linux.
• Fix for slow playback and export on Linux when the window is covered.
• Exports round the output movie size to an even number (except for source and
custom settings).

## 3.7.4

Changes:
• Add a macOS package for Intel.

## 3.7.3

Changes:
• Add GIF export.
• Save window size and position.
• Runtime OpenGL detection.

Fixes:
• Fix for slow movie playback on Macs with AMD graphics.

## 3.7.2

Changes:
• Add PipeWire to the Linux package and Python wheel.

Fixes:
• Fix for the audio buffer size setting.

Fixes:
• Fix for ffmpeg/ffprobe error messages in the file browser.
• Fixes for PyPI audio and Wayland support.

Changes:
* Add support for OTIO multiple media references.
* Add support for OTIO spatial coordinates.
* Add support for partial image sequences.
* Add support for reading SVG files.
* Add audio export.
* Add a "butterfly" compare mode.
* Remove "A" compare mode and make the other compare modes toggles.
* Add support for exporting A/B comparisons.
* Add a gain to the difference comparison, so that differences too small to see at their own size can be brought up.
* Group the information tool into video, audio, and file metadata, with the video first, and show the format of the file next to the format it is decoded to.
* Movie exports carry the start timecode of the range that was exported.
* Add high quality image scaling options.
* Multiple tools can be opened at the same time.
* Add a waveform height option.
* Add an image negative option.
* Add custom aspect ratios.
* Add a center marker option.
* Add more grid and HUD options.
* Add an option for whether the magnify tool tracks the view.
* Multiple files can be opened with the file browser.
* Add the NotoSansCJKsc-Regular font for basic CJK text rendering.
* Add more OpenEXR attributes.
* Add the JPEG file format to export options.
* Add a FFmpeg option to enable hardware decoding for compatible files.
* Add the aom library for AV1 decoding support (macOS and Linux).
* Allow the "Escape" key to be used for keyboard shortcuts.
* Add image I/O library versions to the system information.
* Performance improvements.
* Style updates.
* Library updates:
- FFmpeg 8.1.2
- OpenImageIO v3.1.14.0
- subprocess

Fixes:
* Add the file extensions ".avif" and ".mxf" to the FFmpeg command plugin.
* Fix the duration of movies read with the FFmpeg command plugin.
* Fix metadata with multiple lines overlapping other entries in the information tool.
* Fix opening image sequences whose name ends with a hyphen before the frame number, e.g. "shot-0001.exr".
* Fix exported image sequences being numbered from zero rather than with the frame numbers the export tool shows, which also kept the overwrite warning from appearing when exporting a range twice.
* Fix the macOS application not starting after being renamed.
* Fixes for the grid and outline in compare mode.
* Fixes to prevent cache usage exceeding 100%.
* Fixes for log file failures.

Features:
- Add a button for switching playback loop mode.
- Switch compare mode to "A" if there is only a single file open.
Fixes:
- Fix directory selection for exports.
- Fix flipped export for images and image sequences.
- Fix for YUV->RGB conversion.
- Fix for overlay compare mode.
- Fix for timeline thumbnails shortcuts.
- Fix for window "Float On Top" option.
- Fix for values being clamped to 0.0-1.0 in the color picker tool.
- Fix for contrast control in the color tool.