- InstantUpload path const not longer at two places, only at

InstantUploadService
- new method to create the full path for the instantupload's
- add QUOTA_EXCEEDED to RemoteOperationResult.ResultCode enum to hande
http-507 from oc
- handle RuntimeException at connection lost as HOST_NOT_AVAILABLE
- add the error message for failed uploads for every not uploaded
picture, espacially  for QUOTA_EXCEEDED is it necessary to show that to
the user