Update Menu Block to 2.4

src/cambridge_base.make

@@ -21,7 +21,7 @@ projects[imagecrop][patch][] = "https://gist.github.com/thewilkybarkid/6241365/r
 projects[imagecrop][patch][] = "https://gist.github.com/thewilkybarkid/6351355/raw/a34c91e4480aa7c4c0b79644e13aeeec914c1726/imagecrop_theme.patch"
 projects[libraries] = "2.2"
 projects[link] = "1.2"
-projects[menu_block] = "2.3"
+projects[menu_block] = "2.4"
 projects[menu_firstchild] = "1.1"
 projects[pathauto] = "1.2"
 projects[raven][type] = "module"