Create profile_freiburg
Update profile_freiburg

The SSID freiburg.freifunk.net is used as the VAP-SSID so we have to use sth. different for the ad-hoc SSID..

ATM 02:d1:11:37:fc:38 - why not using 02:CA:FF:EE:BA:BE...
Merge pull request #267 from n3ph/master

package/community-profiles: add profile_freiburg