xvine: bug fix


git-svn-id: https://gnunet.org/svn/gnunet@33867 140774ce-b5e7-0310-ab8b-a85725594a96
sensor: unified numeric datatypes


git-svn-id: https://gnunet.org/svn/gnunet@33868 140774ce-b5e7-0310-ab8b-a85725594a96