Made the default for --result-directory and --temp-directory more obvious that...

Made the default for --result-directory and --temp-directory more obvious that it is **not** the real path, see /scratch/mgunther/test_checkouts/bob.bio.caffe/caffe/bin/caffe 'train' --solver=solver.prototxt -log_dir '.' -snapshot 1e-4/snapshots_iter_50000.solverstate , fixes #43