Update MetaMeute: migrate https to http

Log from #spaceapi:

    <Jamalaka> hey
    <Jamalaka> Since the last update of the android app we have problems updating via https
    <Jamalaka> could you please change https:\/\/status.metameute.de\/spaceapi.json to http:\/\/status.metameute.de\/spaceapi.json ?
    <rohieb> Jamalaka: hmmm. we should probably ask the people from metameute if that is okay
    <rohieb> apparently they use CAcert
    <Jamalaka> rohieb: I am part of the MetaMeute.