JAL-2089 update developer doc

diff --git a/doc/building.html b/doc/building.html
index 2371c89..ecde4d8 100755 (executable)
--- a/doc/building.html
+++ b/doc/building.html
@@ -26,13 +26,12 @@
 <p>
 You will need the following (hopefully):<br>
 <ul>
-<li>Java development kit (JDK1.6 is the recommended platform for developing with Jalview, although JDK1.7 seems to work too!).</li>
-<li>Ant (we think 1.5.4 is quite sufficient to use the simple build
-file supplied, and it seems to work with later versions e.g. 1.7).</li>
+<li>Java development kit (JDK1.8 is now the recommended platform for developing with Jalview.</li>
+<li>Ant (1.7 or later will be needed for some of the jarsigning tools).</li>
 </ul>
 With any luck, after setting your paths and JAVA_HOME correctly, you
 just need to change to the Jalview directory and run ant (this works
-from JBuilder and eclipse too, but NetBeans is a bit trickier).
+from eclipse too, but NetBeans is a bit trickier).
 <pre>
    ant
 </pre>