gconf-helpers: nm_utils_slist_free() is deprecated, use g_slist_free_full()
(cherry picked from commit 2a5c689691e3004c8add0164a8709421639e53f4)
applet: nm_access_point_get_hw_address() is deprecated, use nm_access_point_get_bssid()
(cherry picked from commit 927f0f9f966cef89101f6c67de6c150349a7e15a)
applet: don't use deprecated nm_utils_hwaddr_type()
(cherry picked from commit 60f3a2520ec859d2f0a6b9a0ccbaaaf2ddee2201)