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$ wget --no-clobber --convert-links --random-wait -r -p --level 1 -E -e robots=off -U mozilla http://base.site/dir/
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wget -r -nH --cut-dirs=7 --reject="index.html*" \
http://abc.tamu.edu/projects/tzivi/repository/revisions/2/raw/tzivi/
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-l1 just download the directory (tzivi in your case)
-l2 download the directory and all level 1 subfolders ('tzivi/something' but not 'tivizi/somthing/foo')