diff --git a/sites/all/modules/unl/cron.php b/sites/all/modules/unl/cron.php
index 3ecaf98eb2d8ec53583442dc376cd912fa66e221..c5df327bb7bd3d71add7aed1d5bb2a5a319ea345 100644
--- a/sites/all/modules/unl/cron.php
+++ b/sites/all/modules/unl/cron.php
@@ -1,4 +1,13 @@
 <?php
+/**
+ * 'installed' database number codes (also seen in modules/unl/unl_site_creation.php)
+ *  0: 'Scheduled for creation.'
+ *  1: 'Curently being created.'
+ *  2: 'In production.'
+ *  3: 'Scheduled for removal.'
+ *  4: 'Currently being removed.'
+ *  5: 'Failure/Unknown.'
+ */
 
 if (PHP_SAPI != 'cli') {
   echo 'This script must be run from the shell!';
@@ -22,7 +31,7 @@ unl_add_page_aliases();
 
 function unl_add_sites() {
   $query = db_query('SELECT * FROM {unl_sites} WHERE installed=0');
-  
+
   while ($row = $query->fetchAssoc()) {
     db_update('unl_sites')
       ->fields(array('installed' => 1))
@@ -71,7 +80,7 @@ function unl_add_aliases() {
   $query->fields('a', array('site_alias_id', 'base_uri', 'path'));
   $query->condition('a.installed', 0);
   $results = $query->execute()->fetchAll();
-  
+
   foreach ($results as $row) {
     db_update('unl_sites_aliases')
       ->fields(array('installed' => 1))
@@ -97,7 +106,7 @@ function unl_remove_aliases() {
   $query->fields('a', array('site_alias_id', 'base_uri', 'path'));
   $query->condition('a.installed', 3);
   $results = $query->execute()->fetchAll();
-  
+
   foreach ($results as $row) {
     db_update('unl_sites_aliases')
       ->fields(array('installed' => 4))
@@ -122,7 +131,7 @@ function unl_add_page_aliases() {
   $query->fields('a', array('page_alias_id', 'from_uri', 'to_uri'));
   $query->condition('a.installed', 0);
   $results = $query->execute()->fetchAll();
-  
+
   foreach ($results as $row) {
     db_update('unl_page_aliases')
       ->fields(array('installed' => 1))
@@ -148,7 +157,7 @@ function unl_remove_page_aliases() {
   $query->fields('a', array('page_alias_id'));
   $query->condition('a.installed', 3);
   $results = $query->execute()->fetchAll();
-  
+
   foreach ($results as $row) {
     db_update('unl_page_aliases')
       ->fields(array('installed' => 4))
@@ -175,19 +184,19 @@ function unl_add_site($site_path, $uri, $clean_url, $db_prefix, $site_id) {
   if (substr($site_path, -1) == '/') {
     $site_path = substr($site_path, 0, -1);
   }
-  
+
   $sites_subdir = unl_get_sites_subdir($uri);
-  
+
   $database = $GLOBALS['databases']['default']['default'];
   $db_url = $database['driver']
           . '://' . $database['username']
           . ':'   . $database['password']
           . '@'   . $database['host']
-          . ($database['port'] ? ':' . $database['port'] : '') 
+          . ($database['port'] ? ':' . $database['port'] : '')
           . '/'   . $database['database']
           ;
   $db_prefix .= '_' . $database['prefix'];
-  
+
   $php_path = escapeshellarg($_SERVER['_']);
   $drupal_root = escapeshellarg(DRUPAL_ROOT);
   $uri = escapeshellarg($uri);
@@ -195,15 +204,15 @@ function unl_add_site($site_path, $uri, $clean_url, $db_prefix, $site_id) {
   $db_url = escapeshellarg($db_url);
   $db_prefix = escapeshellarg($db_prefix);
   $site_mail    = escapeshellarg(variable_get('site_mail'));
-  
+
   $command = "$php_path sites/all/modules/drush/drush.php -y --uri=$uri site-install unl_profile --sites-subdir=$sites_subdir --db-url=$db_url --db-prefix=$db_prefix --clean-url=$clean_url";
   if ($site_mail) {
-    $command .= " --site-mail=$site_mail"; 
+    $command .= " --site-mail=$site_mail";
   }
   echo shell_exec($command);
-  
+
   unl_add_site_to_htaccess($site_id, $site_path, FALSE);
-  
+
   return TRUE;
 }
 
@@ -212,20 +221,20 @@ function unl_remove_site($site_path, $uri, $db_prefix, $site_id) {
   $schema = drupal_get_schema(NULL, TRUE);
   $tables = array_keys($schema);
   sort($tables);
-    
+
   $database = $GLOBALS['databases']['default']['default'];
   $db_prefix .= '_' . $database['prefix'];
-  
-  
+
+
   $sites_subdir = unl_get_sites_subdir($uri);
   $sites_subdir = DRUPAL_ROOT . '/sites/' . $sites_subdir;
   $sites_subdir = realpath($sites_subdir);
-  
+
   // A couple checks to make sure we aren't deleting something we shouldn't be.
   if (substr($sites_subdir, 0, strlen(DRUPAL_ROOT . '/sites/')) != DRUPAL_ROOT . '/sites/') {
     return FALSE;
   }
-  
+
   if (strlen($sites_subdir) <= strlen(DRUPAL_ROOT . '/sites/')) {
     return FALSE;
   }
@@ -239,19 +248,19 @@ function unl_remove_site($site_path, $uri, $db_prefix, $site_id) {
       // probably already gone?
     }
   }
-  
+
   // Do our best to remove the sites
   shell_exec('chmod -R u+w ' . escapeshellarg($sites_subdir));
   shell_exec('rm -rf ' . escapeshellarg($sites_subdir));
-  
+
   // Remove the rewrite rules from .htaccess for this site.
   unl_remove_site_from_htaccess($site_id, FALSE);
-  
+
   // If we were using memcache, flush its cache so new sites don't have stale data.
   if (class_exists('MemCacheDrupal', FALSE)) {
     dmemcache_flush();
   }
-  
+
   return TRUE;
 }
 
@@ -260,11 +269,11 @@ function unl_add_alias($site_uri, $base_uri, $path, $alias_id) {
   $real_config_dir = unl_get_sites_subdir($site_uri);
   $alias_config_dir = unl_get_sites_subdir($alias_uri, FALSE);
   $result = symlink($real_config_dir, DRUPAL_ROOT . '/sites/' . $alias_config_dir);
-  
+
   if ($path) {
     unl_add_site_to_htaccess($alias_id, $path, TRUE);
   }
-  
+
   return TRUE;
 }
 
@@ -272,24 +281,24 @@ function unl_remove_alias($base_uri, $path, $alias_id) {
   $alias_uri = $base_uri . $path;
   $alias_config_dir = unl_get_sites_subdir($alias_uri, FALSE);
   unlink(DRUPAL_ROOT . '/sites/' . $alias_config_dir);
-  
+
   unl_remove_site_from_htaccess($alias_id, TRUE);
-  
+
   return TRUE;
 }
 
 function unl_add_page_alias($from_uri, $to_uri, $alias_id) {
   $host = parse_url($from_uri, PHP_URL_HOST);
   $path = parse_url($from_uri, PHP_URL_PATH);
-  
+
   unl_add_page_alias_to_htaccess($alias_id, $host, $path, $to_uri);
-  
+
   return TRUE;
 }
 
 function unl_remove_page_alias($alias_id) {
   unl_remove_page_alias_from_htaccess($alias_id);
-  
+
   return TRUE;
 }
 
@@ -300,7 +309,7 @@ function unl_add_site_to_htaccess($site_id, $site_path, $is_alias) {
   else {
     $site_or_alias = 'SITE';
   }
-  
+
   if (substr($site_path, -1) != '/') {
     $site_path .= '/';
   }
@@ -316,10 +325,10 @@ function unl_add_site_to_htaccess($site_id, $site_path, $is_alias) {
   foreach (array('misc', 'modules', 'sites', 'themes') as $drupal_dir) {
     $new_htaccess .=  "  RewriteRule $site_path$drupal_dir/(.*) $drupal_dir/$1\n";
   }
-  $new_htaccess .= "  # %UNL_END_{$site_or_alias}_ID_{$site_id}%\n\n" 
+  $new_htaccess .= "  # %UNL_END_{$site_or_alias}_ID_{$site_id}%\n\n"
                  . $stub_token
                  . substr($htaccess, $stub_pos + strlen($stub_token));
-  
+
   file_put_contents(DRUPAL_ROOT . '/.htaccess', $new_htaccess);
 }
 
@@ -330,14 +339,14 @@ function unl_remove_site_from_htaccess($site_id, $is_alias) {
   else {
     $site_or_alias = 'SITE';
   }
-  
+
   $htaccess = file_get_contents(DRUPAL_ROOT . '/.htaccess');
   $site_start_token = "\n  # %UNL_START_{$site_or_alias}_ID_{$site_id}%";
   $site_end_token = "  # %UNL_END_{$site_or_alias}_ID_{$site_id}%\n";
-  
+
   $start_pos = strpos($htaccess, $site_start_token);
   $end_pos = strpos($htaccess, $site_end_token);
-  
+
   if ($start_pos === FALSE || $end_pos === FALSE) {
     return FALSE;
   }
@@ -359,10 +368,10 @@ function unl_add_page_alias_to_htaccess($site_id, $host, $path, $to_uri) {
                 . "  RewriteCond %{HTTP_HOST} ^{$host}$\n"
                 . "  RewriteCond %{REQUEST_URI} ^{$path}$\n"
                 . "  RewriteRule (.*) {$to_uri} [R,L]\n"
-  				. "  # %UNL_END_PAGE_ALIAS_ID_{$site_id}%\n\n" 
+                . "  # %UNL_END_PAGE_ALIAS_ID_{$site_id}%\n\n"
                 . $stub_token
                 . substr($htaccess, $stub_pos + strlen($stub_token));
-  
+
   file_put_contents(DRUPAL_ROOT . '/.htaccess', $new_htaccess);
 }
 
@@ -370,10 +379,10 @@ function unl_remove_page_alias_from_htaccess($site_id) {
   $htaccess = file_get_contents(DRUPAL_ROOT . '/.htaccess');
   $site_start_token = "\n  # %UNL_START_PAGE_ALIAS_ID_{$site_id}%";
   $site_end_token = "  # %UNL_END_PAGE_ALIAS_ID_{$site_id}%\n";
-  
+
   $start_pos = strpos($htaccess, $site_start_token);
   $end_pos = strpos($htaccess, $site_end_token);
-  
+
   if ($start_pos === FALSE || $end_pos === FALSE) {
     return FALSE;
   }
@@ -382,15 +391,3 @@ function unl_remove_page_alias_from_htaccess($site_id) {
                 ;
   file_put_contents(DRUPAL_ROOT . '/.htaccess', $new_htaccess);
 }
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/sites/all/modules/unl/unl.module b/sites/all/modules/unl/unl.module
index 02381dd33437f39a89be7ec74a25bd009d908ffe..13e9abe45c15c9af4ac0334cbbd4e1d30d4337ea 100644
--- a/sites/all/modules/unl/unl.module
+++ b/sites/all/modules/unl/unl.module
@@ -206,6 +206,9 @@ function unl_wysiwyg_plugin($editor) {
   }
 }
 
+/**
+ * Implementation of hook_permission().
+ */
 function unl_permission() {
   return array(
     'unl migration' => array(
@@ -243,7 +246,7 @@ function unl_permission() {
 }
 
 /**
- * Adds UNL Migration Tool to the Content menu for admin
+ * Implementation of hook_menu().
  */
 function unl_menu() {
   global $user;
@@ -267,6 +270,7 @@ function unl_menu() {
     'file' => 'technical_feedback.php'
   );
 
+  // Adds UNL Migration Tool to the Content menu for admin
   $items['admin/content/unl/migration'] = array(
     'title'            => 'UNL Migration Tool',
     'description'      => 'Migrate a static UNL template page into drupal',
@@ -384,7 +388,12 @@ function unl_menu() {
   return $items;
 }
 
+/**
+ * Implementation of hook_menu_alter().
+ */
 function unl_menu_alter(&$items) {
+  // This duplicates the form at admin/appearance/settings/unl_wdn for roles that can't 'administer themes' but have 'unl theme settings' permission.
+  // For these users the Appearance link is changed to point to admin/themes
   foreach (array('module', 'file', 'page arguments') as $key) {
     $items['admin/themes'][$key] = $items['admin/appearance/settings/' . variable_get('theme_default')][$key];
   }
@@ -453,9 +462,7 @@ function unl_form_alter(&$form, &$form_state, $form_id) {
     }
   }
 
-  /**
-   * Modify the Permissions and Roles forms for non-administrators
-   */
+  // Modifications for non-administrators
   $admin_role_id = unl_shared_variable_get('user_admin_role', -1);
   if (!in_array($admin_role_id, array_keys($GLOBALS['user']->roles))) {
     switch ($form_id) {
@@ -596,9 +603,10 @@ function unl_form_alter(&$form, &$form_state, $form_id) {
 }
 
 /**
- * When a node is modified, update its menu link to be hidden or not based on the user input.
+ * Implementation of hook_node_form_submit().
  */
 function unl_node_form_submit($form, &$form_state) {
+  // When a node is modified, update its menu link to be hidden or not based on the user input.
   $menu_data = $form_state['values']['menu'];
 
   if ($menu_data['mlid']) {
@@ -622,6 +630,9 @@ function unl_node_form_submit($form, &$form_state) {
   menu_link_save($menu_link);
 }
 
+/**
+ * Implementation of hook_system_settings_form_submit().
+ */
 function unl_system_settings_form_submit($form, &$form_state) {
   variable_set('https', (bool) $form_state['values']['https']);
   if ($form_state['values']['unl_primary_base_url'] != '_null') {
@@ -632,6 +643,9 @@ function unl_system_settings_form_submit($form, &$form_state) {
   }
 }
 
+/**
+ * Implementation of hook_theme().
+ */
 function unl_theme() {
   return array(
     'unl_table' => array(
@@ -640,6 +654,9 @@ function unl_theme() {
   );
 }
 
+/**
+ * Implementation of hook_url_outbound_alter().
+ */
 function unl_url_outbound_alter(&$path, &$options, $original_path) {
   $path_parts = parse_url($path);
   if (isset($path_parts['scheme']) || $path == 'user/cas') {
@@ -663,6 +680,10 @@ function unl_url_outbound_alter(&$path, &$options, $original_path) {
   $options['https'] = (bool) (variable_get('https', 0) && !$generic_user);
 }
 
+/**
+ * Custom function for implementing user_access for multiple permissions.
+ * Feature request: http://drupal.org/node/216897
+ */
 function unl_user_access($permissions, $account = NULL) {
   foreach ($permissions as $permission) {
     if (substr($permission, 0, 1) == '!') {
@@ -672,17 +693,15 @@ function unl_user_access($permissions, $account = NULL) {
     else {
       $result = user_access($permission, $account);
     }
-
     if (!$result) {
       return FALSE;
     }
   }
-
   return TRUE;
 }
 
 /**
- * Additional validation on the user_admin_role form (admin/people/permissions/roles/edit/%)
+ * Custom function for additional validation on the user_admin_role form (admin/people/permissions/roles/edit/%)
  * to prevent a user from deleting the administrator role. (This is not needed if permissions are shared and only administrators can edit roles.)
  */
 function unl_user_admin_role_validate($form, &$form_state) {
@@ -696,6 +715,9 @@ function unl_user_admin_role_validate($form, &$form_state) {
   }
 }
 
+/**
+ * Implementation of hook_cron().
+ */
 function unl_cron() {
   _unl_cron_migration_step();
   _unl_cron_import_wdn_registry_sites();
@@ -804,7 +826,9 @@ function _unl_cron_import_wdn_registry_sites() {
   }
 }
 
-// Creates a db_prefix short enough to not go over MySQL's max table name length
+/**
+ * Custom function that creates a db_prefix short enough to not go over MySQL's max table name length.
+ */
 function unl_create_db_prefix($site_name) {
   $parent_prefix = '_' . $GLOBALS['databases']['default']['default']['prefix'];
 
@@ -844,6 +868,9 @@ function unl_sanitize_url_part($url_part) {
   return $url_part;
 }
 
+/**
+ * Custom function.
+ */
 function unl_get_alternate_base_uris() {
   $shared_prefix = unl_get_shared_db_prefix();
   if (is_array($GLOBALS['databases']['default']['default']['prefix'])) {
@@ -854,7 +881,7 @@ function unl_get_alternate_base_uris() {
     return array();
   }
   $rows = db_query(
-  	"SELECT s.uri, a.base_uri, a.path "
+    "SELECT s.uri, a.base_uri, a.path "
     . "FROM {$shared_prefix}unl_sites AS s "
     . "LEFT JOIN {$shared_prefix}unl_sites_aliases AS a "
     . "  ON s.site_id = a.site_id "
@@ -876,6 +903,9 @@ function unl_get_alternate_base_uris() {
   return $uris;
 }
 
+/**
+ * Implementation of hook_init().
+ */
 function unl_init() {
   $primary_base_url = variable_get('unl_primary_base_url');
   if ($primary_base_url) {
@@ -893,6 +923,9 @@ function unl_init() {
   }
 }
 
+/**
+ * Implementation of hook_mail().
+ */
 function unl_mail($key, &$message, $params) {
   if ($key == 'site_created') {
     $site = $params['site'];
@@ -925,6 +958,9 @@ EOF;
   }
 }
 
+/**
+ * Custom function.
+ */
 function unl_send_site_created_email($site = NULL) {
   $shared_prefix = unl_get_shared_db_prefix();
 
@@ -978,9 +1014,10 @@ function unl_send_site_created_email($site = NULL) {
   }
 }
 
-// A simple "I'm still alive" page to check to see that drupal is working.
-function unl_still_alive()
-{
+/**
+ * Custom function that outputs a simple "I'm still alive" page to check to see that drupal is working.
+ */
+function unl_still_alive() {
   header('Content-type: text/plain');
   echo '200 Still Alive';
 }