Bug 464172: Reduce the number of warnings for org.osgi.* classes by using the "Ignore optional compile problems" option

- added missing references to R5 compendium and enterprise
diff --git a/bundles/org.eclipse.platform.doc.isv/platformOptions.txt b/bundles/org.eclipse.platform.doc.isv/platformOptions.txt
index dfeadce..06f5d8d 100644
--- a/bundles/org.eclipse.platform.doc.isv/platformOptions.txt
+++ b/bundles/org.eclipse.platform.doc.isv/platformOptions.txt
@@ -183,6 +183,7 @@
 -bottom "<br><span style='font-size:small;float:right'>Copyright (c) 2000, 2015 Eclipse Contributors and others. All rights reserved.</span><span style='font-size:small'><a href='{@docRoot}/../misc/api-usage-rules.html'>Guidelines for using Eclipse APIs.</a></span>"
 -link https://docs.oracle.com/javase/8/docs/api/
 -link https://osgi.org/javadoc/r6/core/
+-link https://osgi.org/javadoc/r5/cmpn/
 -link https://osgi.org/javadoc/r5/enterprise/
 -tag 'noimplement:a:Restriction:'
 -tag 'noextend:a:Restriction:'
diff --git a/bundles/org.eclipse.platform.doc.isv/topics_Reference.xml b/bundles/org.eclipse.platform.doc.isv/topics_Reference.xml
index ba2422c..fb6b4d1 100644
--- a/bundles/org.eclipse.platform.doc.isv/topics_Reference.xml
+++ b/bundles/org.eclipse.platform.doc.isv/topics_Reference.xml
@@ -502,7 +502,9 @@
        <topic label="org.eclipse.ui.workingSets" href="reference/extension-points/org_eclipse_ui_workingSets.html"/>
     </topic>
 
-	<topic label="OSGi API Reference" href="https://osgi.org/javadoc/r6/core"/>
+	<topic label="OSGi R6 Core API Reference" href="https://osgi.org/javadoc/r6/core/"/>
+	<topic label="OSGi R5 Compendium API Reference" href="https://osgi.org/javadoc/r5/cmpn/"/>
+	<topic label="OSGi R5 Enterprise API Reference" href="https://osgi.org/javadoc/r5/enterprise/"/>
 
 	<topic label="Other reference information" href="reference/misc/index.html">
       	<topic label="Runtime options" href="reference/misc/runtime-options.html"/>