563071: update org.eclipse.mylyn.tasks versions to 3.25.1

Change-Id: I35497c556acc6730746e9622279a5840841b282d
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=563071
diff --git a/org.eclipse.mylyn-feature/feature.xml b/org.eclipse.mylyn-feature/feature.xml
index dec5ee5..6ed436a 100644
--- a/org.eclipse.mylyn-feature/feature.xml
+++ b/org.eclipse.mylyn-feature/feature.xml
@@ -31,7 +31,7 @@
    </license>
 
    <url>
-      <discovery label="Mylyn 3.25 for Eclipse 4.7 and 4.8" url="http://download.eclipse.org/mylyn/releases/3.25"/>
+      <discovery label="Mylyn 3.25.1 for Eclipse 4.7 and 4.8" url="http://download.eclipse.org/mylyn/releases/3.25"/>
    </url>
 
    <requires>