instances: fix counter unit

Fixes: bug#1165123

Change-Id: Ib51c10fc8d622dc1ff121b3aedf479d62d7872f3
Signed-off-by: Julien Danjou <julien@danjou.info>
(cherry picked from commit c498562b539fab1dc810b5113fede71df0f9de91)
update the ceilometer.conf.sample

- also update the extract_opts.py as it was not working

fixes bug #1173201

Change-Id: I348c9d37900deb520d04b3e3855012da2cdf8236
(cherry picked from commit 182814336a4beb67302b31c93bf582c2050f03f2)
Adds examples of CLI and API queries to the V2 documentation.

This patch includes additional reST-formatted text that will add new/expanded examples of v2 API use to the existing documentation.
Fixes: bug #1160929

Change-Id: I63fa9dd8b050a63f005c4a5b35399355fdeb7605
(cherry picked from commit 6979b16e2c5ce84fb04cbb8ea34a55ea77a8abe7)
Measurements documentation update

Nova measurements:
- add cpu_util
- del disk.io.requests, disk.io.bytes
- add instance unit to instance:*

+fix some errors on type and unit

for all measurements add new column 'Origin' :
notification|pollster|both

tag : DocImpact
Fixes: bug #1164032

Change-Id: I0046032b8835168772fc7fff6c34a9be99ddbd56
(cherry picked from commit 6f7efd1efedbc4baa7c2263d1536a985f0895fc0)
Set hbase table_prefix default to None

...table_prefix default value was empty string which fails the connection to hbase thrift server. it should be set to None instead...

Change-Id: I1339c7dad09d311f0a4e3b16d67057e3471e8c5b
Fixes: bug #1173205
(cherry picked from commit 8bcc3773ac0153f69e56508a17abf465d90492a0)
Merge "update the ceilometer.conf.sample" into stable/grizzly
Merge "Measurements documentation update" into stable/grizzly
Merge "instances: fix counter unit" into stable/grizzly
Merge "Set hbase table_prefix default to None" into stable/grizzly
Merge "Adds examples of CLI and API queries to the V2 documentation." into stable/grizzly