Feature: various: remove support for heartbeat cluster layer
Including:
- --with-heartbeat configure option
- the HBDummy test resource agent
- crm_uuid tool
- crm_node --epoch and --heartbeat options
- crm_report -H/--heartbeat option and ability to collect heartbeat data
- CTSlab.py --heartbeat/--lha options
- cluster-init -h/--heartbeat options
- support for heartbeat-class resource agents
- support for PCMK_debugfile, HA_debugfile, PCMK_use_logd, HA_use_logd, and HA_LOGD environment variables
- support for auto-detecting cib.xml in /var/lib/heartbeat/crm
- support for CIB secrets in /var/lib/heartbeat/lrm/secrets
- support for type="normal" (instead of "member") in CIB <node> entries
- ability to decode Heartbeat <2.0.8 transition keys in old CIB files
- lrmd's creation of /var/run/heartbeat/rsctmp at start-up for RAs
- Public API symbols: ACTIVESTATUS, CRM_LEGACY_CONFIG_DIR, CRM_NODE_EVICTED, DEADSTATUS, HA_VARLIBHBDIR, JOINSTATUS, LEAVESTATUS, NORMALNODE, PINGSTATUS
This does NOT remove support for Linux-HA fence agents.