rose edit: tweak latent page display
#1105: tweak default page expansion
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.
Slightly re-order slides used in Suites I to keep families together.
Initial attempt at changing message.
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
Fix user name sort order in a test
Merge pull request #1285 from arjclark/suitesI.reorder

Training slides: Tweak suites session slide order
Update CHANGES.md
Update CHANGES.md
Merge pull request #1275 from benfitzpatrick/1105.rose-edit.tweak-default-expand

#1105: tweak default page expansion
Update CHANGES.md
Merge pull request #1287 from matthewrmshin/fix-t-sort-user

Fix user name sort order in a test
Merge remote branch 'upstream/master' into improve_shutdown_msg
Merge pull request #1290 from arjclark/improve_shutdown_msg

Improve "already running shutdown.." message