Security update for pacemaker (important)

This update for pacemaker fixes the following issues:

Security issues fixed:

• CVE-2016-7797: Notify other clients of a new connection only if the
  handshake has completed (bsc#967388, bsc#1002767).
• CVE-2016-7035: Fixed improper IPC guarding in pacemaker (bsc#1007433).

Bug fixes:

• bsc#1003565: crmd: Record pending operations in the CIB before they are
  performed
• bsc#1000743: pengine: Do not fence a maintenance node if it shuts down
  cleanly
• bsc#987348: ping: Avoid temporary files for fping check
• bsc#986644: libcrmcommon: report errors consistently when waiting for
  data on connection
• bsc#986644: remote: Correctly calculate the remaining timeouts when
  receiving messages