compile gragent.jar to run under jdk1.5

plugins/groovy/hotswap/build.xml

@@ -21,7 +21,7 @@
       </fileset>
     </copy>
 
-    <javac source="1.5" destdir="anttask.classes" fork="true">
+    <javac source="1.5" target="1.5" destdir="anttask.classes" fork="true">
       <src path="anttask.src"/>
       <classpath>
         <fileset dir="${build.lib.path}">

plugins/groovy/hotswap/pluginSrc/META-INF/plugin.xml

@@ -2,7 +2,7 @@
   <id>org.intellij.groovy.hotswap</id>
   <name>Groovy HotSwap</name>
   <description>Enables HotSwap functionality in Groovy classes</description>
-  <version>0.3</version>
+  <version>0.4</version>
   <idea-version since-build="93.90" until-build="96.1"/>
   <vendor logo="/org/jetbrains/plugins/groovy/images/groovy_16x16.png" url="http://www.jetbrains.com">JetBrains Inc.</vendor>
   <depends>org.intellij.groovy</depends>