made real Cloudservice pushing and pulling data from festivalradar.duckdns.org:8080

also added feature to set own id,

some additions in interfaces and whatnot, pretty big commit
added textedit to choose id of a new contact
fixed a bug, getService.notifyNewData() was not called on getting new data from server
appended (ID) to name in ManageContactActivity items
some esthetical and UI choices
some upgrades for compatibility with new CloudSubService module in master branch