title: Menu is not displaying in Magento Admin
body: <p>I want to add a section in magento dashboard for a particular user type with user add/edit/delete facility, so I have created a module for magento Admin but it not diplay in Admin menu.
  I want to display association menu in magento admin.</p>
  
  <p>Although it is displaying in system -> config ->advance to give enable/disable facility. 
  The config xml is.
          
        
          
              
                  0.1.0
              
          </p>
  
  <pre><code>    &lt;global&gt;
          &lt;models&gt;
              &lt;association&gt;
                  &lt;class&gt;yanga_association_Model&lt;/class&gt;
                  &lt;resourceModel&gt;association_mysql4&lt;/resourceModel&gt;
              &lt;/association&gt;
              &lt;association_mysql4&gt;
                  &lt;class&gt;yanga_association_Model_Mysql4&lt;/class&gt;
                  &lt;entities&gt;
                      &lt;association&gt;
                          &lt;table&gt;association&lt;/table&gt;
                      &lt;/association&gt;
                  &lt;/entities&gt;
              &lt;/association_mysql4&gt;
          &lt;/models&gt;
          &lt;resources&gt;
              &lt;association_setup&gt;
                  &lt;setup&gt;
                      &lt;module&gt;yanga_association&lt;/module&gt;
                  &lt;/setup&gt;
                  &lt;connection&gt;
                      &lt;use&gt;core_setup&lt;/use&gt;
                  &lt;/connection&gt;
              &lt;/association_setup&gt;
              &lt;association_write&gt;
                  &lt;connection&gt;
                      &lt;use&gt;core_write&lt;/use&gt;
                  &lt;/connection&gt;
              &lt;/association_write&gt;
              &lt;association_read&gt;
                  &lt;connection&gt;
                      &lt;use&gt;core_read&lt;/use&gt;
                  &lt;/connection&gt;
              &lt;/association_read&gt;
          &lt;/resources&gt;
          &lt;blocks&gt;
              &lt;association&gt;
                  &lt;class&gt;yanga_association_Block&lt;/class&gt;
              &lt;/association&gt;
          &lt;/blocks&gt;
          &lt;helpers&gt;
              &lt;association&gt;
                  &lt;class&gt;yanga_association_Helper&lt;/class&gt;
              &lt;/association&gt;
          &lt;/helpers&gt;
      &lt;/global&gt;
       &lt;admin&gt;
          &lt;routers&gt;
              &lt;association&gt;
                  &lt;use&gt;admin&lt;/use&gt;
                  &lt;args&gt;
                      &lt;module&gt;Yanga_Association&lt;/module&gt;
                      &lt;frontName&gt;association&lt;/frontName&gt;
                  &lt;/args&gt;
              &lt;/association&gt;
          &lt;/routers&gt;
      &lt;/admin&gt;
      &lt;adminhtml&gt;
      &lt;menu&gt;
          &lt;association module="association"&gt;
              &lt;title&gt;Association&lt;/title&gt;
              &lt;sort_order&gt;71&lt;/sort_order&gt;              
              &lt;children&gt;
                  &lt;items module="association"&gt;
                      &lt;title&gt;Manage Association&lt;/title&gt;
                      &lt;sort_order&gt;0&lt;/sort_order&gt;
                         &lt;action&gt;association/adminhtml_association&lt;/action&gt;
                  &lt;/items&gt;
  
              &lt;/children&gt;
          &lt;/association&gt;
      &lt;/menu&gt;
      &lt;acl&gt;
          &lt;resources&gt;
              &lt;all&gt;
                  &lt;title&gt;Allow Everything&lt;/title&gt;
              &lt;/all&gt;
              &lt;admin&gt;
                  &lt;children&gt;
                      &lt;system&gt;
                          &lt;children&gt;
                              &lt;config&gt;
                                  &lt;children&gt;
                                      &lt;Association&gt;
                                          &lt;title&gt;Association Module&lt;/title&gt;
                                          &lt;sort_order&gt;10&lt;/sort_order&gt;
                                      &lt;/Association&gt;
                                  &lt;/children&gt;
                               &lt;/config&gt;
                           &lt;/children&gt;
                      &lt;/system&gt;
                      &lt;Yanga_Association&gt;
                          &lt;title&gt;System Configuration Tab&lt;/title&gt;
                          &lt;sort_order&gt;10&lt;/sort_order&gt;
                      &lt;/yanga_Association&gt;
                  &lt;/children&gt;
              &lt;/admin&gt;
          &lt;/resources&gt;
      &lt;/acl&gt;
      &lt;layout&gt;
          &lt;updates&gt;
              &lt;association&gt;
                  &lt;file&gt;association.xml&lt;/file&gt;
              &lt;/association&gt;
          &lt;/updates&gt;
      &lt;/layout&gt;
  &lt;/adminhtml&gt;
  </code></pre>
  
  <p>
  Kindly provide us the solution if have.
  Thanks in advance.</p>