hidden files! exposed!

turns out I was hiding hidden files, that is, files like
D08/10/E/.01_E_OF_SAN_ANTONIO/801245_ML_2007.60.imputed.2007RData

both the query and the fetch were harboring this bug, as was my R
code!

fixed.

also tweaked the package.json.  this fix deserves a bump to the
version