

   Add new options:
    - 'outfile=' to control the location (full path) of the output file for
      the 'ntuple' and 'simplefile'.
    - add support for the keyword 'external' in the URL option field of the
      master URL to indicate that the cluster is external in cases when it
      is not possible to determine the locality, for example when using an
      SSH tunnel; example
                            runProof("simple", "localhost:10001/?external")


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@43441 27541ba8-7e3a-0410-8455-c3a389f83636

bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT