Add "busydialogdelayms" advanced setting.

Provides control over the delay until busy dialog is shown when starting
video playback.
Fix memory leak in SurfaceFlinger.

Call native_window_api_disconnect to free the memory used by OMX video decoder.
Or, there is memory leak in SurfaceFlinger after a stream playback is stopped.
[Players] Avoid jumping volume to maximum after trickplay
For players that control volume, if the speed changes (e.g. with ff/rew) the volume gets reset to maximum.
This change sets it back to current value, although I question why it is being changed at all.
Do any players require muting during trickplay?
ActiveAE: make viz not observe volume and mute
FIX: [droid] cleanup assets before build and reinstall (possible fix for #14565)
droid:jni, extend input device handling
droid: add controller/gamepad handling
FIX: Enable Hat handling in Application::ProcessJoystick
FIX: [droid] proper joystick Hat support
PR: fixup PR comments
Only build libwayland_test.a if building tests with wayland
Change the CPU temperature fetch command for testing purposes so that it always works, even on VMs
Drop isBidiCharset check, its not in the API anymore
Fix TestHttpHeader test and build failures:

1. We don't use CStdString anymore
2. The http header is now in the exact same order as the input
3. We don't put the charset in the mimetype anymore
Remove libass from repository
Use libass from external dependencies
Fixed exception in recent libass version.
[3D] add support to change the stereomode via builtins
[3D] add initial support for stereoscopics handling to JSONrpc
Bump JsonRPC api version