Merge lp:~themue/juju-core/docs-004-cmd-unset into lp:juju-core/docs

[Frank Mueller]

Added documentation for unset command.

[Nick Veitch (evilnick)]

Thnaks for that. I think we may need to explain more about the persistence of config options at some point, but this is useful :)

=== modified file 'htmldocs/charms-config.html'
--- htmldocs/charms-config.html	2013-09-27 14:53:30 +0000
+++ htmldocs/charms-config.html	2013-10-01 10:41:47 +0000
@@ -131,10 +131,15 @@
     type: string
     value: vector
 </pre>
-              <p>You can set the options using the  <code>juju set &LT;service&GT;</code>, specifying multiple key:value pairs if necessary:</p>
+		<p>You can set the options using the <code>juju set &LT;service&GT;</code>, specifying multiple key=value pairs if necessary:</p>
 <pre class="prettyprint">
 juju set mediawiki skin=monoblock name='Juju Wiki' 
 </pre>
+		<p>Setting options back to their default value is done using the <code>unset</code> command followed
+		by the service and the respective options:</p>
+<pre class="prettyprint">
+juju unset mediawiki admins name 
+</pre>
             </section>
 <!--Postamble-->
         </div>

=== modified file 'htmldocs/commands.html'
--- htmldocs/commands.html	2013-09-27 14:53:30 +0000
+++ htmldocs/commands.html	2013-10-01 10:41:47 +0000
@@ -104,6 +104,7 @@
                 <li><strong>sync-tools</strong>           copy tools from the official bucket into a local environment</li>
                 <li><strong>terminate-machine</strong>    alias for destroy-machine</li>
                 <li><strong>unexpose</strong>             unexpose a service</li>
+                <li><strong>unset</strong>                set service config options back to their default</li>
                 <li><strong>upgrade-charm</strong>        upgrade a service's charm</li>
                 <li><strong>upgrade-juju</strong>         upgrade the tools in a juju environment</li>
                 <li><strong>version</strong>              print the current version</li>