updated cache_info test, apparently results for archiving slightly changed


git-svn-id: svn+ssh://svn.mystic.cacr.caltech.edu/pathos/klepto@584 8bfda07e-5b16-0410-ab1d-fd04ec2748df
fix: raise KeyError instead of OSError for dir_archive


git-svn-id: svn+ssh://svn.mystic.cacr.caltech.edu/pathos/klepto@585 8bfda07e-5b16-0410-ab1d-fd04ec2748df
Merge branch 'master' of https://github.com/uqfoundation/klepto