pmd-eclipse: add release notes

pmd-eclipse-plugin/README.md

@@ -12,6 +12,7 @@ Importing the projects in Eclipse
 Make sure you have the Maven Integration (m2e - http://eclipse.org/m2e/) installed. Then you can
 import *Existing Maven Projects*.
 You should see 6 projects:
+
 * net.sourceforge.pmd.eclipse - that's the feature
 * net.sourceforge.pmd.eclipse.p2updatesite - generates the update site
 * net.sourceforge.pmd.eclipse.parent - the parent pom project

pmd-eclipse-plugin/ReleaseNotes.md

@@ -0,0 +1,12 @@
+PMD For Eclipse - Release Notes
+===============================
+
+Eclipse Update Site: http://pmd.sourceforge.net/eclipse/
+
+10-May-2013: 4.0.0.v20130510-1000
+---------------------------------
+* Updated PMD to 5.0.4
+* Fixed False Positive: LocalVariableCouldBeFinal ([bug #1075])
+
+[bug #1075]: http://sourceforge.net/p/pmd/bugs/1075/
+