Merge pull request #405 from stitam/new_release

More edits before releasing v1.3.0

Merge pull request #378 from stitam/new_release

Final edits before submitting to CRAN

Merge pull request #366 from stitam/new_release

Update a documentation URL

Merge pull request #342 from stitam/new_release

Final edits before v1.1.2

Merge pull request #314 from stitam/newrelease

Merge pull request #301 from stitam/new_release

Final final edits before v1.1

Merge pull request #261 from stitam/master

Very final edit before next release

Merge pull request #213 from stitam/master

Update CONTRIBUTING.md

documentation

prep for cran