Fix wording on user permissions option

Contributors inherit researchers' privileges, so though this only
directly grants to researchers, both roles will get the privilege.

Author: zerocrates

config_form.php

@@ -11,11 +11,11 @@
 </div>
 <div class="field">
     <div class="two columns alpha">
-        <label for="exhibit_builder_researcher_permissions"><?php echo __('Researcher Permissions'); ?></label>
+        <label for="exhibit_builder_researcher_permissions"><?php echo __('Contributor/Researcher Permissions'); ?></label>
     </div>
     <div class="inputs five columns omega">
         <p class="explanation">
-            <?php echo __('Allow Researcher users to view unpublished exhibits.'); ?>
+            <?php echo __('Allow Contributor and Researcher users to view unpublished exhibits.'); ?>
         </p>
         <?php echo get_view()->formCheckbox('exhibit_builder_researcher_permissions', get_option('exhibit_builder_researcher_permissions'), null, array('checked' => 1)); ?> 
     </div>