Update binary compatibility version

Author: aherbert

pom.xml

@@ -252,7 +252,7 @@ limitations under the License.
     <japicmp.skip>false</japicmp.skip>
 
     <!-- Commons Release Plugin -->
-    <commons.bc.version>1.14</commons.bc.version>
+    <commons.bc.version>1.15</commons.bc.version>
     <commons.rc.version>RC1</commons.rc.version>
     <commons.release-plugin.version>1.7</commons.release-plugin.version>
     <commons.release.isDistModule>true</commons.release.isDistModule>