Update inflector docblocks, add changelog entry
diff --git a/system/helpers/inflector_helper.php b/system/helpers/inflector_helper.php
index 7261567..647d840 100644
--- a/system/helpers/inflector_helper.php
+++ b/system/helpers/inflector_helper.php
@@ -45,7 +45,7 @@
 	 * Takes a plural word and makes it singular
 	 *
 	 * @param	string
-	 * @return	str
+	 * @return	string
 	 */
 	function singular($str)
 	{
@@ -110,7 +110,7 @@
 	 *
 	 * @param	string
 	 * @param	bool
-	 * @return	str
+	 * @return	string
 	 */
 	function plural($str, $force = FALSE)
 	{
@@ -166,7 +166,7 @@
 	 * Takes multiple words separated by spaces or underscores and camelizes them
 	 *
 	 * @param	string
-	 * @return	str
+	 * @return	string
 	 */
 	function camelize($str)
 	{
@@ -184,7 +184,7 @@
 	 * Takes multiple words separated by spaces and underscores them
 	 *
 	 * @param	string
-	 * @return	str
+	 * @return	string
 	 */
 	function underscore($str)
 	{
@@ -203,7 +203,7 @@
 	 *
 	 * @param	string	$str
 	 * @param 	string	$separator
-	 * @return	str
+	 * @return	string
 	 */
 	function humanize($str, $separator = '_')
 	{
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index d33a6a6..0066af9 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -52,6 +52,7 @@
    -  set_realpath() can now also handle file paths as opposed to just directories.
    -  do_hash() now uses PHP's native hash() function, supporting more algorithms.
    -  Added an optional paramater to ``delete_files()`` to enable it to skip deleting files such as .htaccess and index.html.
+   -  Removed deprecated helper function ``js_insert_smiley`` from smiley helper.
 
 -  Database