Added workaround to avoid a crash when the user clicks the right mouse button in Firemonkey for MacOS.
Added the click count to the mouse events to the Linux Firemonkey demo.
Added the ShowMessageCF function to show a message dialog in MacOS.
Added calls to FMX.Types.Log.d to write error messages in Firemonkey for Linux and MacOS.
Added X11 error handling functions to FMXExternalPumpBrowser2 demo for Linux.
Deleted FMXExternalPumpBrowser demo for Linux.
Added uCEFMacOSConstants and uCEFMacOSFunctions units for MacOS.
Replaced TThread.Queue for TThread.ForceQueue to avoid executing that method immediately in some cases.
- Added TCEFWorkSchedulerQueueThread as an experimental way to handle the external message pump events for all platforms.
- Fixed backwards compatibility issues with Delphi 7.
