Changed version number, added upgrade instructions
diff --git a/user_guide/helpers/array_helper.html b/user_guide/helpers/array_helper.html
index a3f66fb..328ca79 100644
--- a/user_guide/helpers/array_helper.html
+++ b/user_guide/helpers/array_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/cookie_helper.html b/user_guide/helpers/cookie_helper.html
index 4592a2f..53418c8 100644
--- a/user_guide/helpers/cookie_helper.html
+++ b/user_guide/helpers/cookie_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/date_helper.html b/user_guide/helpers/date_helper.html
index c6df300..436ac88 100644
--- a/user_guide/helpers/date_helper.html
+++ b/user_guide/helpers/date_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/directory_helper.html b/user_guide/helpers/directory_helper.html
index bc1e905..497ac99 100644
--- a/user_guide/helpers/directory_helper.html
+++ b/user_guide/helpers/directory_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/download_helper.html b/user_guide/helpers/download_helper.html
index c89257a..06b56ed 100644
--- a/user_guide/helpers/download_helper.html
+++ b/user_guide/helpers/download_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/file_helper.html b/user_guide/helpers/file_helper.html
index 68ce66e..4d759a7 100644
--- a/user_guide/helpers/file_helper.html
+++ b/user_guide/helpers/file_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/form_helper.html b/user_guide/helpers/form_helper.html
index 3dcb147..8eea961 100644
--- a/user_guide/helpers/form_helper.html
+++ b/user_guide/helpers/form_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/html_helper.html b/user_guide/helpers/html_helper.html
index 8a81dde..b89fc1c 100644
--- a/user_guide/helpers/html_helper.html
+++ b/user_guide/helpers/html_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/index.html b/user_guide/helpers/index.html
index 6701603..66a0fee 100644
--- a/user_guide/helpers/index.html
+++ b/user_guide/helpers/index.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/inflector_helper.html b/user_guide/helpers/inflector_helper.html
index 3ac47a0..c52cf03 100644
--- a/user_guide/helpers/inflector_helper.html
+++ b/user_guide/helpers/inflector_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/security_helper.html b/user_guide/helpers/security_helper.html
index 0fc9662..91392ad 100644
--- a/user_guide/helpers/security_helper.html
+++ b/user_guide/helpers/security_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/smiley_helper.html b/user_guide/helpers/smiley_helper.html
index dd04451..b0bbf8a 100644
--- a/user_guide/helpers/smiley_helper.html
+++ b/user_guide/helpers/smiley_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/string_helper.html b/user_guide/helpers/string_helper.html
index 9a6fc35..2c39bb3 100644
--- a/user_guide/helpers/string_helper.html
+++ b/user_guide/helpers/string_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/text_helper.html b/user_guide/helpers/text_helper.html
index bafc6ac..c5c413d 100644
--- a/user_guide/helpers/text_helper.html
+++ b/user_guide/helpers/text_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/typography_helper.html b/user_guide/helpers/typography_helper.html
index b1d0841..b1137e8 100644
--- a/user_guide/helpers/typography_helper.html
+++ b/user_guide/helpers/typography_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/url_helper.html b/user_guide/helpers/url_helper.html
index ad8ada3..53cad70 100644
--- a/user_guide/helpers/url_helper.html
+++ b/user_guide/helpers/url_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>

diff --git a/user_guide/helpers/xml_helper.html b/user_guide/helpers/xml_helper.html
index 119e8d2..af95ae5 100644
--- a/user_guide/helpers/xml_helper.html
+++ b/user_guide/helpers/xml_helper.html
@@ -33,7 +33,7 @@
 <div id="masthead">

 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">

 <tr>

-<td><h1>Code Igniter User Guide Version 1.5.1</h1></td>

+<td><h1>Code Igniter User Guide Version 1.5.2</h1></td>

 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>

 </tr>

 </table>