Fix: crm_report: Correctly collect logs when 'uname -n' reports fully qualified names

When crm_report is run from such a node, it would incorrectly remove the
directory from underneath itself causing extractions on subsequent nodes
to fail badly.
Fix: crm_report: Suppress irrelevant error message
Test: Make our dummy LSB script more realistic
Doc: Pacemaker_Explained: Document the stop-all-resources option
Fix: init: Unless specified otherwise, assume cman is in use if cluster.conf exists