Additions and Changes for Cider-CI Version 3.10 Gantrisch

Cider-CI 3.10 is named after the mountain Gantrisch located in the Bernese Prealps.

New Features

• The tree page will also show commits reachable via submodules.
• A new page "debug" for each script helps debugging and reproducibility.
• Environment variables on the executor are escaped for the shell be fore they are passed on to the shell.
• API: extend and fix filtering jobs.