- update(): only hide the module when hide-disconnected is set AND the
modem is not in the CONNECTED state, instead of hiding it unconditionally
(the module was invisible by default).
- free the gchar* returned by mm_modem_dup_physdev/
mm_modem_dup_equipment_identifier/mm_sim_dup_operator_name.
- meson.build: drop duplicate libgps dependency, install the wwan man page.
- man: document hide-disconnected (replacing the unimplemented
hide-failed/hide-disabled/hide-not-registered options).
- remove stray empty subprojects/.wraplock.
Alex