fa extension is common too

tripal_chado/includes/TripalImporter/FASTAImporter.inc

@@ -21,7 +21,7 @@ class FASTAImporter extends TripalImporter {
   /**
    * An array containing the extensions of allowed file types.
    */
-  public static $file_types = array('fasta');
+  public static $file_types = array('fasta', 'fa');
 
 
   /**
@@ -936,4 +936,4 @@ class FASTAImporter extends TripalImporter {
     chado_query($sql, array(':feature_id' => $feature_id));
 
   }
-}
+}