rose edit: tweak latent page display
Fix overlap file install

Fix file installation in `rose *-run`, where there is an overlap between
targets. E.g. Free files exists in `etc/`, and `[file:etc/...]` sections
also exist in the configuration file.
Update CONTRIBUTING.md
implement feedback: add constants for column indices
Merge pull request #1261 from benfitzpatrick/rose-edit.fix-modifier-latent

rose edit: tweak latent page display
Rename test comment

Was copied and pasted.
Merge pull request #1282 from matthewrmshin/fix-overlap-file-install

Fix overlap file install