up the jdk version to 1.3, and add a note about ant's jdk requirements for older versions of ant (bugzilla 44610)

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@640018 13f79535-47bb-0310-9956-ffa450edef68

docs/manual/install.html

@@ -205,11 +205,16 @@ that is not namespace-aware. In particular, avoid the Crimson parser.</p>
 
 <p>
 For the current version of Ant, you will also need a JDK installed on
-your system, version 1.2 or later required, 1.5 or later strongly recommended.
+your system, version 1.3 or later required, 1.5 or later strongly recommended.
 The later the version of Java , the more Ant tasks you get.
 </p>
 <p>
-<strong>Note #2: </strong>If a JDK is not present, only the JRE runtime, then many tasks will not work.
+  <strong>Note: </strong>If a JDK is not present, only the JRE runtime, then many tasks will not work.
+</p>
+<p>
+  <strong>Note: </strong>
+  Ant 1.7.* works with jdk1.3 and higher, Ant 1.6.* works with jdk 1.2 and higher,
+  Ant 1.2 to Ant 1.5.* work with jdk 1.1 and higher.
 </p>
 
 <h3>Open Source Java Runtimes</h3>
@@ -219,7 +224,6 @@ The later the version of Java , the more Ant tasks you get.
     well on those platforms. What appears to work well is Kaffe with
     Gnu Classpath and the Xerces and Xalan libraries.
 </p>
-
 <hr>
 <h2><a name="installing">Installing Ant</a></h2>
 <p>The binary distribution of Ant consists of the following directory layout: