Implemented RealtimeData class to wrap realtime data factory responses
Updated RealtimeDataFactory to return RealtimeData
Updated setRealtimeData method to use RealtimeData object
Remove unused TimeSeries class
Added proxy to Gruntfile for realtime data
Added workaround to RealtimeDataFactory, to request no more than once per millisecond
Refactored ObservationView to load observatories collection, instead of ObservationMetaView, bind measurements and factory to load realtime data
Removed unused var
Removed legacy realtime data methods
Added comments to ObservationView methods