Bump version to 2.1.3

VCS plugins changes:
- SourceHgWeb 2.1.3

Author: dregad

Source/MantisSourceBase.class.php

@@ -19,7 +19,7 @@ abstract class MantisSourceBase extends MantisPlugin
 	 * a change in the minimum required MantisBT version: 0=1.2; 1=1.3, 2=2.x.
 	 * The framework version is incremented when the plugin's core files change.
 	 */
-	const FRAMEWORK_VERSION = '2.1.2';
+	const FRAMEWORK_VERSION = '2.1.3';
 
 	/**
 	 * Minimum required MantisBT version.