added entries for version 1.3.0

Author: bfmartin

Changelog

@@ -1,3 +1,9 @@
+Version 1.3.0 2019-03-20
+- TODO list: switch windows with alt-Tab keys
+- TODO list: double click on a window's titlebar is maximise/unmaximise
+- TODO list: windows and icons will snap to each other
+- TODO list: mouse button 2 on a window border shows window-ops menu
+
 Version 1.2.0 2016-12-19
 - added different styles to close / minimise / maximise buttons
 - added IconPath and PixmapPath variables, though commented out for now