Change some descriptions to be more understandable/correct. Change some Heading->Yaw labels. Use new isLandCommand setting.

FollowMe: Fix "Always" settings for streaming GCS position

gstqgcvideosinkbin update

Mobile File Dialog: Fix file extension appending

Fix file extension appending

Fix Radio button problems

Fix RadioButton group problems. Rework RTL settings to match correct usage.

Fix RadioButton group problems

Plan: Visual tweaks for mission items

Plan: Survey and Corridor Scan now share same command sequence generation code

Survey And Corridor now share same transect generation code. Better unit tests for both with more coverage.

Force consistent setting for offline vehicle

Use only default values when running unit tests

Replaced not equal operator for double values to qFuzzyCompare

Set correct parameter type for signal

Added parent to the new FactMetaData objects to be owned by parent

Visual tweaks for mission items

Fixed suspicious if-expression

Stable_V4.0->master merge