OpenShot Video Editor 2.4.3

What's new in this version:

- Bumping version to 2.4.3 (libopenshot dependency to 0.2.2)
- Disable OMP thread concurrency during Export, to make exports as safe as possible
- Nudge clips when holding SHIFT + Left or Right arrow
- Animated Masks: New "reader" propety type, initially used by the Mask effect to change the image/video used by transitions and the Mask effect
- Add Save Current Frame button
- New translation & language infrastructure and logic (better logic for determining current language)
- Fixed split keep both sides (right side position was incorrect)
- Application icon updates
- Zoom fixes (lots of issues relating to zooming fixed)
- Undo/Redo fixes (fixing and preventing giant .osp project files)
- New tutorial system, better child window management
- Travis CI Integration
- Improve Title filename duplication naming/counting
- Use track names in "Add To Timeline" window
- Improve waveform display rendering
- Fix audio wave not rendered after completion
- Add instagram and twitter presets
- Add AppStream metadata to setup.py
- Timeline JavaScript Bug Fixes
- Timeline cleanup and performance, upgrade Angular.js
- Removing libdrm.so.2 from AppImage
- Add src/language path to Mac DMG builder
- Add language override on command line using --lang
- Add explanatory text for --list-lang
- Some fixes for the timeline debugger
- Update edit-clear icon in Humanity
- Correct variable name typo to initialize properly
- Convert all nonesential logs to .debug()
- Remove unused effects filters
- Add "Ask a Question" template
- Preventing libopenshot version check on unittests
- More framerates for YouTube HD and Vimeo HD presets
- Convert (most) files with DOS line-endings to Unix
- Remove debug.js from index.html
- Square the PNG icon file
- App metadata updates for easier packaging
- Move Slice All shortcuts to correct menu
- launch-linux.sh: Don't set QT_DEBUG_PLUGINS=1
- Updating default project type to 720p 30 FPS, and sample rate 44100
- Fix retention of export path
- Fixing GitLab to no longer run CI for tags, and fixing version # for daily and release builds
- Add "release-candidate" to filename for daily RC builds, so they don't look so official on the website
- Misc Typos and text fixes
- Updating contributors and supporters
- Updating translations