===========================
- Reduced size of widget for camera focal length units.
Also changed labels to mm/px. Now it's much easier to read
values and titles here.
- Reordered settings in "Display" panel. Hopefully it's
now easier to read options here even when N-panel
isn't large enough.
- Fixed bug with "disappearing" labels from "Active marker" panel.
- If search areas are hidden and marker is disabled,
make pattern area red rather than displaying nothing for
this marker.
- Internal change: "show marker path" became "show track path".
- Lock shape of pattern to square by default. Control unlocks
this shape.
- Hitting escape when sliding cancels changes and stops sliding.
- Search areas are hidden by default now. No big benefit of
looking at them now after changing default settings to
2D tracker and pattern/search size.
- Both of Toolshelf and Properties panels are now visible
by default.
- Move keyframes from Properties panel to Toolshelf.
It is a key thing which makes reconstruction correct and
this options were too hidden and not so convenient to
use.
b821244614