feat(stacktrace): get job exception stacktrace doc

related to CAM-976
fix(installation-guides): update cockpit/tasklist

Closes CAM-1033
doc(rest): authorized operation links user & group

related to #CAM-1040
chore(docpad): adjust docpad installation
chore(docpad): adjust docpad installation
fix(docpad): update partials plugin version to ~2.7.0

- runs with latest docpad versions
feat(jboss): doc jboss subsystem in userguide

related to #CAM-1008 but broader in scope
fix(userguide): typos