Low: main: Seed random generator on startup
Low: config: Validate boolean values correctly
High: scripts: Cluster scripts (fate#316464, fate#309206, fate#316332)

This patch updates the cluster sublevel, reorganizing
it into three separate sublevels: cluster, script and corosync.

* cluster: Functionality similar to the ha-cluster-bootstrap scripts,
    cluster status and more
* script: Implements support for server-side scripts that can be
    used to implement more capable wizards in Hawk.
* corosync: Implements support for corosync, such as editing the
    configuration and comparing the configurations of different nodes.

Also adds early stage cluster scripts for HA health monotoring.
Dev: hb_report: Update FSF address in header
Dev: build: Fix makefiles for utils/ and scripts/
Low: scripts: remove() needs a list, not a tuple
Low: scripts: Fix incorrect variable name
Low: scripts: Scaffolding for cluster init/add/remove
Dev: gitignore: Update .gitignore
Dev: build: Add scripts to configure.ac