Bigtop 1.4.0 website update

Author: evans-ye

src/site/xdoc/index.xml

@@ -53,7 +53,7 @@
 			<br />
 
 			<subsection name="Download latest release of Bigtop"></subsection>
-			<p><a href="download.html#releases">Bigtop-1.3.0</a> </p>
+			<p><a href="download.html#releases">Latest release</a> </p>
 
 			<subsection name="All required tools will be installed by ./gradlew toolchain"></subsection>
 			<p>However place supply a suitable JRE (for instance openjdk7) first</p>