Relicense under GNU LGPLv3.

Change-Id: Iff7c8ea8eee3484b15f5291c4fef8f3a4f170730
diff --git a/pom.xml b/pom.xml
index 82d8cae..5df3dd5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,8 +20,8 @@
 
   <licenses>
     <license>
-      <name>GNU General Public License v3.0 or later</name>
-      <url>https://www.gnu.org/licenses/gpl-3.0.html</url>
+      <name>GNU Lesser General Public License v3.0 or later</name>
+      <url>https://www.gnu.org/licenses/lgpl-3.0.html</url>
     </license>
   </licenses>