BUG: 394341

Use KLocalizedString (for i18n only, in kf5 it will necessary => use a script for converting it when necessary)

Use const'ref, change if(foo) delete foo => delete foo not necessary to check it, C++ does it for us

Add explicit keyword when necessary

src/CMakeLists.txt gets splitted in several files; #include's are now
relative to src/ (or, when in one of its direct sub directories, on
it).

Corruptions might appear otherwise.

svn path=/trunk/kdenlive/; revision=5825

When at beginning and using "go to previous keyframe" or at the end and using "go to next keyframe" + there was a keyframe the icon turned to "add keyframe"

svn path=/trunk/kdenlive/; revision=5534

Moving a keyframe might be somewhat unexpected.
A keyframe's position can be changed precisely since keyframes snap to the timeline cursor.

svn path=/trunk/kdenlive/; revision=5482

svn path=/trunk/kdenlive/; revision=5474

svn path=/trunk/kdenlive/; revision=5471

- fix keyframe deletion
- allow to add/remove keyframes with double click in the keyframe timeline

svn path=/trunk/kdenlive/; revision=5446

svn path=/trunk/kdenlive/; revision=5442

- highlight hovered keyframe
- snap to timeline cursor when dragging keyframe
- do not allow dragging keyframe on top of another one

svn path=/trunk/kdenlive/; revision=5441

svn path=/trunk/kdenlive/; revision=5430

rotoscoping: make keyframe timeline look the same as the one used for geometries (pan & zoom, affine, composite)

svn path=/trunk/kdenlive/; revision=5429

svn path=/trunk/kdenlive/; revision=5424

svn path=/trunk/kdenlive/; revision=5401

- keyframe support (WIP)
- obey to direct update setting for on-monitor items

svn path=/trunk/kdenlive/; revision=5400