Changed version number, added upgrade instructions
diff --git a/user_guide/general/alternative_php.html b/user_guide/general/alternative_php.html
index 89e53fd..c97f4ba 100644
--- a/user_guide/general/alternative_php.html
+++ b/user_guide/general/alternative_php.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/general/ancillary_classes.html b/user_guide/general/ancillary_classes.html
index b40905c..78c3620 100644
--- a/user_guide/general/ancillary_classes.html
+++ b/user_guide/general/ancillary_classes.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/general/autoloader.html b/user_guide/general/autoloader.html
index c16ad4c..c63ed72 100644
--- a/user_guide/general/autoloader.html
+++ b/user_guide/general/autoloader.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/general/caching.html b/user_guide/general/caching.html
index 8352fcd..b5d5c80 100644
--- a/user_guide/general/caching.html
+++ b/user_guide/general/caching.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/general/controllers.html b/user_guide/general/controllers.html
index ef2d3fa..945791a 100644
--- a/user_guide/general/controllers.html
+++ b/user_guide/general/controllers.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/general/core_classes.html b/user_guide/general/core_classes.html
index aa64bb4..5121b7d 100644
--- a/user_guide/general/core_classes.html
+++ b/user_guide/general/core_classes.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/general/creating_libraries.html b/user_guide/general/creating_libraries.html
index 86cd152..7ab97d6 100644
--- a/user_guide/general/creating_libraries.html
+++ b/user_guide/general/creating_libraries.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/general/credits.html b/user_guide/general/credits.html
index a3bfaa3..77c080c 100644
--- a/user_guide/general/credits.html
+++ b/user_guide/general/credits.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/general/errors.html b/user_guide/general/errors.html
index af7ae4b..60456d3 100644
--- a/user_guide/general/errors.html
+++ b/user_guide/general/errors.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/general/helpers.html b/user_guide/general/helpers.html
index e346bd6..2bae263 100644
--- a/user_guide/general/helpers.html
+++ b/user_guide/general/helpers.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/general/hooks.html b/user_guide/general/hooks.html
index 86082d2..1b9ad7a 100644
--- a/user_guide/general/hooks.html
+++ b/user_guide/general/hooks.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/general/index.html b/user_guide/general/index.html
index daef000..2d3ad90 100644
--- a/user_guide/general/index.html
+++ b/user_guide/general/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/general/libraries.html b/user_guide/general/libraries.html
index 7478226..d293920 100644
--- a/user_guide/general/libraries.html
+++ b/user_guide/general/libraries.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/general/managing_apps.html b/user_guide/general/managing_apps.html
index 58712c7..13bd6b7 100644
--- a/user_guide/general/managing_apps.html
+++ b/user_guide/general/managing_apps.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/general/models.html b/user_guide/general/models.html
index 5ca1ae8..d7e0e60 100644
--- a/user_guide/general/models.html
+++ b/user_guide/general/models.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/general/plugins.html b/user_guide/general/plugins.html
index 61f4574..0e83c5c 100644
--- a/user_guide/general/plugins.html
+++ b/user_guide/general/plugins.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/general/profiling.html b/user_guide/general/profiling.html
index 77bb9eb..688531e 100644
--- a/user_guide/general/profiling.html
+++ b/user_guide/general/profiling.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/general/quick_reference.html b/user_guide/general/quick_reference.html
index b3154f4..2a7fee2 100644
--- a/user_guide/general/quick_reference.html
+++ b/user_guide/general/quick_reference.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/general/requirements.html b/user_guide/general/requirements.html
index 1163e6d..e1d3241 100644
--- a/user_guide/general/requirements.html
+++ b/user_guide/general/requirements.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/general/routing.html b/user_guide/general/routing.html
index e8d074e..a4ca8dc 100644
--- a/user_guide/general/routing.html
+++ b/user_guide/general/routing.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/general/scaffolding.html b/user_guide/general/scaffolding.html
index ea51137..ba1a804 100644
--- a/user_guide/general/scaffolding.html
+++ b/user_guide/general/scaffolding.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/general/security.html b/user_guide/general/security.html
index 083be36..48c8ce8 100644
--- a/user_guide/general/security.html
+++ b/user_guide/general/security.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/general/urls.html b/user_guide/general/urls.html
index f493c69..e2ebbf2 100644
--- a/user_guide/general/urls.html
+++ b/user_guide/general/urls.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/general/views.html b/user_guide/general/views.html
index a8d0fec..21f8b5c 100644
--- a/user_guide/general/views.html
+++ b/user_guide/general/views.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>