Merge pull request #2312 from freifunk-gluon/gluon-web-wifi-cleanup

...luasrc/lib/gluon/upgrade/320-gluon-client-bridge-wireless

...door/luasrc/lib/gluon/config-mode/wizard/0250-outdoor.lua

package/gluon-core/luasrc/lib/gluon/upgrade/180-outdoors

package/gluon-core/luasrc/usr/lib/lua/gluon/platform.lua

package/gluon-core/luasrc/usr/lib/lua/gluon/wireless.lua

...rc/lib/gluon/config-mode/controller/admin/privatewifi.lua

.../luasrc/lib/gluon/config-mode/model/admin/privatewifi.lua

...rc/lib/gluon/config-mode/controller/admin/wifi-config.lua

.../luasrc/lib/gluon/config-mode/model/admin/wifi-config.lua