update contact options

new version: support more than 1 location per community, working on f…

…reifunk/directory.api.freifunk.net#626

add map type for hopglass, solves #143

set another place for privacy section in schema

added privacy policy section

twitter pattern now supports dash and underlines

added new section for refugees and social projects to feed freifunk-h…

…ilft.de

re-added accidently removed "meshviewer", fixes #136, thanks @Sheogor…

…ath-SI

type

described version 0.4.8