Build #836 (28/09/2019, 4:21:25 PM)

1. Windows: prevent `clean[all].bat` from deleting `.gitignore` if it is (details / githubweb)
2. Some minor cleaning up. (details / githubweb)

Started by upstream project OpenCOR_Linux build number 836
originally caused by:

• GitHub pull request #2160 of commit 39b5818d1f0bebd50200152b4583a24788798500, no merge conflicts.

This run spent:

• 5 ms waiting;
• 11 min build duration;
• 11 min total from scheduled to completion.

• refs/remotes/origin/pr/2160/merge