Update doap files with 7.2.1 release
diff --git a/dev-tools/doap/lucene.rdf b/dev-tools/doap/lucene.rdf
index ade660d..12caed3 100644
--- a/dev-tools/doap/lucene.rdf
+++ b/dev-tools/doap/lucene.rdf
@@ -69,6 +69,13 @@
     <!-- NOTE: please insert releases in numeric order, NOT chronologically. -->
     <release>
       <Version>
+        <name>lucene-7.2.1</name>
+        <created>2018-01-15</created>
+        <revision>7.2.1</revision>
+      </Version>
+    </release>
+    <release>
+      <Version>
         <name>lucene-7.2.0</name>
         <created>2017-12-21</created>
         <revision>7.2.0</revision>
diff --git a/dev-tools/doap/solr.rdf b/dev-tools/doap/solr.rdf
index fd2f96a..105e711 100644
--- a/dev-tools/doap/solr.rdf
+++ b/dev-tools/doap/solr.rdf
@@ -69,6 +69,13 @@
     <!-- NOTE: please insert releases in numeric order, NOT chronologically. -->
     <release>
       <Version>
+        <name>solr-7.2.1</name>
+        <created>2018-01-15</created>
+        <revision>7.2.1</revision>
+      </Version>
+    </release>
+    <release>
+      <Version>
         <name>solr-7.2.0</name>
         <created>2017-12-21</created>
         <revision>7.2.0</revision>