LVM agents:  Retry VG shutdown to cope with udev collisions

When trying to shutdown a VG, a failure can occur due to udev
opening an LV.  A error with a message similar to the following
can occur:
  lvm[25454]: Can't deactivate volume group "vg1" with 1 open logical volume(s)
Allowing udev to settle and trying the operation again helps to
resolve the issue.

Helps to resolve rhbz729812.
Merge pull request #196 from jbrassow/master

LVM agents: Retry VG shutdown to cope with udev collisions
Medium: nfsserver: fix all cause an error to call rpc.statd
Medium: pound: fix space character
Low: pgsql: support starting as Hot Standby

rep_mode=slave starts PostgreSQL as Hot Standby to connect to Primary.
This mode does not support Master/Slave configuration.
Low: pgsql: add check_wal_receiver parameter

add check_wal_receiver parameter to check wal_receiver process on monitor
and notify its status using "<resource name>-receiver-status" attribute
to check  whether PostgreSQL(Hot Standby) connects to primary.
The attribute shows status as "normal" or "ERROR".
Default is false.
Merge pull request #198 from t-matsuo/start-as-hs3

Start PostgreSQL as Hot Standby and check wal_receiver process
Merge pull request #197 from nozawat/master

Medium: pound: fix space character
Low: Xinetd: improve finding Xinetd process (thanks to Vadym Chepkov)
Low: Xinetd: use local instead of typeset
Medium: Xinetd: do not fail in stop if the daemon is not running
Low: nfsserver: move configuration checks to the validation phase
Medium: tools: ocft: add "incremental" mode (ocft test -i)

Cache results and not repeatedly rerun those cases which succeeded.
Medium: tools: ocft: the ocft will only make the updated test-case file
Medium: tools: ocft: the ocft test prints the actual case names instead of just case numbers
Medium: ocf-shellfuncs: RA tracing
Low: SendArp: fix monitor

SendArp (when run in background) is a short living process. We
use here ha_pseudo_resource.
Medium: SendArp: add background parameter

If sending ARPs happen in background, we cannot report the
outcome to the cluster. Allow users to set background to false to
make sure that sending ARPs succeeded.
build: update ChangeLog for release candidate 3.9.5 rc1
Low: IPaddr2: support nic:iflabel format in nic parameter

This format is deprecated but supported for the backward compatibility.