fix erroneous command in cloud admin guide

I believe that the initial "iptables -L -nv" command in this section is
erroneous and should simply be dropped.

The task is:

  Ensure the NAT rules have been added to iptables on the node that
  nova-network is running on, as root

NAT rules only exist in the iptables nat table.  There are two commands
following this task; the first one (removed by this patch) refers to the
*filter* table and shows impossible output (the filter table cannot
contain a DNAT rule).

The second iptables command correctly specifies "-t nat" and appears to
contain the same information as the impossible output from the previous
command.

Change-Id: I8dce50b6e1a1e42ff3955ecb3fbc612cd4a9f074
Closes-bug: 1294196
Adding link to release info

Adding link (hyperlinked text here) to release schedule as part of Release Cycle under figure 1.2.

Change-Id: Ice05babc87d325cb589f7f08a1162368e6654c9e
Modify the EMC VNX Direct Driver document.

Modify the EMC VNX Direct Driver document to clarify
where to find the max_luns_per_storage_group and a few
more small changes.

Change-Id: I0ae606494f968b62227e44568e5fe65ec27afde3
Adds comparison of Tenant and Provider networks

Adds an in-depth description of each of the available network types
and discusses options for tenant and provider networks.

Change-Id: I02c92669e141d80a4f86a4ec6e8bd54ce9567c67
Closes-Bug: 1298775
Adds crmsh to list, plus note about crm shell

Change-Id: I5ec78bca5832b31fa7bfe2528d5042bc278e42e9
Closes-Bug: 1279187
Merge "Adding link to release info"
Add stub chapter for heat to config-ref

This patch adds the previously generated tables for heat into the
config reference by way of a new chapter.

It is expected that this be merged as a starting point, with structure
to enable further patching.

Closes-Bug: 1284470
Change-Id: I715849f542c4b1c291fdc6a1c669f77cabca18ff
Merge "Modify the EMC VNX Direct Driver document."
Merge "Adds comparison of Tenant and Provider networks"
Merge "Add stub chapter for heat to config-ref"
Merge "fix erroneous command in cloud admin guide"