The ARA SDK's debug functionality is included in the audio_processors
module, hence the configuration had to be moved there from
juce_plugin_client.

The previous implementation would trigger assertions in
grabKeyboardFocus() when the DragImageComponent was hidden due to the
target returning false from shouldDrawDragImageWhenOver().

Hiding the image would also mean that its keyboard focus was lost. Now
focus is restored when the image becomes visible again.

Fixes an issue on Windows that caused superfluous HWND messages on DPI aware plugins that resulted in dismissing focused components.

The warnings are only silenced in code that is conditionally used on
older platforms. When the newer (non-deprecated) API is available, it
will be used.

The current minimum-supported Xcode (10.1) includes the macOS 10.14.1
SDK, so APIs from macOS 10.14 will always be available.

The current minimum-supported Xcode (10.1) includes the macOS 10.14.1
SDK, so APIs from macOS 10.13 will always be available.

The current minimum-supported Xcode (10.1) includes the macOS 10.14.1
SDK, so APIs from macOS 10.12 will always be available.

The current minimum-supported Xcode (10.1) includes the iOS 12.1 SDK, so
APIs from iOS 12 will always be available.

The current minimum-supported Xcode (10.1) includes the iOS 12.1 SDK, so
APIs from iOS 10 will always be available.

The current minimum-supported Xcode (10.1) includes the iOS 12.1 SDK, so
APIs from iOS 10 will always be available.

Previously, input streams created by AndroidDocument instances did not
implement setPosition, so they were not useful for reading some file
formats, such as WAV.

Due to limitations of the Java InputStream interface, seeking backwards
in a stream requires creating a whole new stream and seeking from the
beginning, so it could be quite slow.

Prior to this commit it was possible to get the menu bar deactivated
by moving the mouse to an adjacent menu item and then back again. If
the movement was quick enough the corresponding PopupMenu would be
dismissed and created again before the dismissal's async command
handler would run. The command handler would see that the dismissed
menu's index and the currently activated index are equal and
deactivate the menu bar.

Previously having a JUCE title bar prevented the style flags from
being restored, and this caused the native window border resizers to
remain active after entering and then leaving full screen.