[patches] #41 change ssid to berlin.freifunk.net

Maybe this can be upstream after we talked to @stargieg about
ffwizard-pberg and meshwizard and if it is needed there.
Merge pull request #60 from freifunk-berlin/fix-apssid

[patches] #41 change ssid to berlin.freifunk.net
README: fix typo
Merge branch 'master' into update/luci