Set `KOLIBRI_WINDOWS_INSTALLER_VERSION` to initial v1.3.1 milestone branch.
Set `KOLIBRI_WINDOWS_INSTALLER_VERSION` to initial v1.3.1 milestone branch.

mrpau/kolibri,indirectlylit/kolibri,mrpau/kolibri,indirectlylit/kolibri,indirectlylit/kolibri,learningequality/kolibri,indirectlylit/kolibri,mrpau/kolibri,mrpau/kolibri,learningequality/kolibri,learningequality/kolibri,learningequality/kolibri