Related to #912

Pistos Pi authored Jan 05, 2021 and Jean-Baptiste Mardelle committed Jan 06, 2021

Allow users to choose between:

- scroll wheel in timeline scrolls horizontally, Shift + scroll wheel scrolls vertically
- scroll wheel in timeline scrolls vertically, Shift + scroll wheel scrolls horizontally

Julius Künzel authored Dec 30, 2020 and Jean-Baptiste Mardelle committed Jan 06, 2021

".kdenlivelayout", question message if layout is saved under existing
name

Signed-off-by: Julius Künzel <jk.kdedev@smartlab.uber.space>

Don't store current variables (doc, itemmodel) in media browser, add clip to project on double click
Related to #768

Fixes #905

Fixes #909

Always keep timeline cursor visible when seeking with keyboard, not only when "follow playhead when playing is enabled".
Related to #903

Fixes #906
BUG: 430843

Related to #906

Ensure jobs for timeline clips/tracks are properly canceled when the clip/track is deleted, fix crash on audio align deleted clip

(cherry picked from commit ec0441c9)

Related to #899

Related to #900

Related to #900

Fixes #842 and !149

Fixes #901

update copyright year

Related to #886