merged from develop, fixed conflict in user guide.
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index cdb3d3d..f2f3712 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -53,6 +53,9 @@
 	{
 		$this->CI =& get_instance();
 
+		// applies delimiters set in config file.
+		$this->_config_delimiters();
+		
 		// Validation rules can be stored in a config file.
 		$this->_config_rules = $rules;
 
@@ -67,6 +70,27 @@
 
 		log_message('debug', "Form Validation Class Initialized");
 	}
+	
+	// --------------------------------------------------------------------
+	
+	/**
+	 * if prefixes/suffixes set in config, assign and unset.
+	 * 
+	 * @return	void
+	 */
+	protected function _config_delimiters()
+	{
+		if (isset($rules['error_prefix']))
+		{
+			$this->_error_prefix = $rules['error_prefix'];
+			unset($rules['error_prefix']);
+		}
+		if (isset($rules['error_suffix']))
+		{
+			$this->_error_suffix = $rules['error_suffix'];
+			unset($rules['error_suffix']);
+		}
+	}
 
 	// --------------------------------------------------------------------
 
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index b5fb52d..ed151bf 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -85,6 +85,7 @@
    -  Minor speed optimizations and method & property visibility declarations in the Calendar Library.
    -  Removed SHA1 function in the :doc:`Encryption Library <libraries/encryption>`.
    -  Added $config['csrf_regeneration'] to the CSRF protection in the :doc:`Security library <libraries/security>`, which makes token regeneration optional.
+   -  Form Validation library now allows setting of error delimiters in the config file via $config['error_prefix'] and $config['error_suffix'].
    -  Added function error_array() to return all error messages as an array in the Form_validation class.
    -  Added function set_data() to Form_validation library, which can be used in place of the default $_POST array.
    -  Added function reset_validation() to form validation library, which resets internal validation variables in case of multiple validation routines.
diff --git a/user_guide_src/source/libraries/form_validation.rst b/user_guide_src/source/libraries/form_validation.rst
index 5aa64d0..95d6c5e 100644
--- a/user_guide_src/source/libraries/form_validation.rst
+++ b/user_guide_src/source/libraries/form_validation.rst
@@ -523,7 +523,7 @@
 
 By default, the Form Validation class adds a paragraph tag (<p>) around
 each error message shown. You can either change these delimiters
-globally or individually.
+globally, individually, or change the defaults in a config file.
 
 #. **Changing delimiters Globally**
    To globally change the error delimiters, in your controller function,
@@ -543,6 +543,12 @@
 
       <?php echo validation_errors('<div class="error">', '</div>'); ?>
 
+#. **Set delimiters in a config file**
+   You can add your error delimiters in application/config/form_validation.php as follows::
+   
+      $config['error_prefix'] = '<div class="error_prefix">';
+      $config['error_suffix'] = '</div>';
+
 
 Showing Errors Individually
 ===========================