Removed a bunch of exports

I’d like to keep the external API as simple as possible for now.  The
internal functions are documented, and users are free to find and use
them, but I don’t want to make the promise that these functions will be
there in future releases.  I want the flexibility to re-work the
internal API.

We can release the internal API piece by piece as it matures and
solidifies.
Updated description

Zach’s full name
More informative description field
R 3.1.0 because I’m paranoid
cran comments
dontrun the dotplot.caretStack example

We’re not exporting dotplot.caretStack yet because it’s not working
yet… we need to figure out how to handle the different resamples in the
meta model vs the component models.
rebuilt docs
Merge pull request #118 from zachmayer/CRAN-Cleanup-2

Cran cleanup 2