Warn about glide slope altitudes

Fix Create Plan vertical spacing problem

Integrate Create Plan overlay in File DropPanel

SectionHeader no longer set width automatically

Delete icon and Command Picker ui

New centered PlanEditToolbar

Better incomplete data visuals

Fix save state checks. Show overlay on New.

Wizard Mode for Create Plan

Fix incorrect import

Update for Qt 5.11

New Create Plan support

Start with no polygon

Bug fix

Corridor edit toolbar

Update for new controls usage

Survey items start with no polygon

Fix centerViewport calculation

Add Angle, Rotate, Stats to Presets page

Rework presets

Use TabBar in Complex Item UI

More work on mission item indicators

Fix SplitSegment insertion

Only hide generic waypoint indicators

Use Options control

Use new GCOptionsComboBox control

Remove all case missing current index notification

Use new SplitIndicator control

Allow split of current segment

Correctly handle command changes from no-coordinate item to coordinate item

Hide waypoint indicators unless they are really needed

Remove child item display

FW Landing slope heights display

New QGCDynamicObjectManager support

Add Terrain toggle to MapScale control

Updated visuals

More work on direction arrows

Hide sequence numbers

Change entry/exit, use new MapLineArrow control