Update SDL2.Framework to 2.09

Bugfix: QGC crashes when Taisync is attached for the first time

User hardware video decoding on Android

ArduPilot: Fix parameter write broken by non-ArduPilot component changes

Branding Logo Fixes

Handles branding logo visibility according to available space.

Fix parameter write broken by non-ArduPilot component changes

Disambiguate showComponentDialog

Parameter meta data cleanup

Switch to clearer property usage

Switch to clearer property usage

Tweaking toolstrip layout

Multiple vehicle types

Fix several issues with APM using the new UI model.

Support Log Replay in new Qml only system

New qml base log replay status bar

Add show Teleemtry Log Replay Status Bar to Fly View settings

Fix no GST builds

Clean up parameter meta data version methods to match spec

Fix up vehicle type usage when getting firmware plugin

Fix travis android build

Fix android build

MissionManager: correct frame on Rally mission items

Add gimbal control command to Vehicle

Implement overlay on recorded videos by using subtitle files

Switch custom firmware file picker to QtQuick

With the switch to QtQuick, all file dialogs from the c++ side no longer work. This was marked as TODO and fell through the cracks.