Pull request for #oSC13 version

This is the pull request for #oSC13 version of the application.Schedule and Google Maps is imported and some (minor) changes have been done. 

Replace the "test_key" with the "official_key" in the "Config.java" [1] so as to upload the application in Google Play. 


[1] https://github.com/athanrous/suseconferenceclient/blob/master/client/src/de/incoherent/suseconferenceclient/Config.java