first stab at exporting pulp content to a directory

export a series of pulp repos to a directory including the listing
files.  this can then be copied over to a different Katello server
and synced by setting up a CDN address of http://localhost/<path>
adding method parens to follow coding convention
Merge pull request #4 from mccun934/pulpv2-export-support

first stab at exporting pulp content to a directory