Fix `--resources` did not find resources with `::`

Running `puppet node exports --resources haproxy::balancermember` returned no rows. Changing capitalizations to `Haproxy::Balancermember` or `Haproxy::balancermember` did not return rows either.

By not capitalizing the resource, the caller is responsible for the correct capitalization, but also ensures we can find any resource.
Merge pull request #1 from francois/patch-1

Fix `--resources` did not find resources with `::`