- Update to 4.19.3:
* Set initial workspace's group properly on X11
* Add XfwClientType to doc sections
* Add xfw_set_client_type() to doc sections
* Add xfw_set_client_type()
* Add an X11-specific header and xfw_window_get_xid()
* Remove xfw_(window|application)_get_id()
* Expose class ids in XfwWindow and XfwApplication
* Update ext-workspace protocol spec to current version
* XfwWindowX11: Improve monitor list management
* XfwWindowX11: Fix monitor management