OS-1848 + OS-1849 fix validation on create-snapshot, fix tests for KVM.
Fix merge
Merge branch 'master' of git://github.com/joyent/smartos-live into ec
OS-1862 fix documentation for tests.
OS-1813 include files from /opt/custom/etc/rsyslog.d/ to extend rsyslog config for GZ persistently.
Merge branch 'master' of git://github.com/joyent/smartos-live into ec