Typecast limit and offset in the Database Driver to integers. Fixes https://bitbucket.org/ellislab/codeigniter-reactor/issue/341/active-record-limit-function-have-sql#comment-597403
diff --git a/system/database/DB_active_rec.php b/system/database/DB_active_rec.php
index 0238c73..7bab729 100644
--- a/system/database/DB_active_rec.php
+++ b/system/database/DB_active_rec.php
@@ -870,11 +870,11 @@
 	 */
 	public function limit($value, $offset = '')
 	{
-		$this->ar_limit = $value;
+		$this->ar_limit = (int) $value;
 
 		if ($offset != '')
 		{
-			$this->ar_offset = $offset;
+			$this->ar_offset = (int) $offset;
 		}
 
 		return $this;
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 7b74be0..9fbadbf 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -77,6 +77,7 @@
 			<li class="reactor">Added <samp>insert_batch()</samp> function to the PostgreSQL database driver. Thanks to epallerols for the patch.</li>
 			<li class="reactor">Callback validation rules can now accept parameters like any other validation rule.</li>
 			<li class="reactor">Added "application/x-csv" to mimes.php.</li>
+			<li class="reactor">Typecast limit and offset in the <a href="database/queries.html">Database Driver</a> to integers.</li>
 		</ul>
 	</li>
 	<li>Helpers