Update japicmp to 0.13.0

Change-Id: Ib2bbdef1e1ede55115d1526b6699e905623c36a5
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

pom.xml

@@ -208,7 +208,7 @@
     <osgi-core-version>4.3.1</osgi-core-version>
     <servlet-api-version>3.1.0</servlet-api-version>
     <jetty-version>9.4.11.v20180605</jetty-version>
-    <japicmp-version>0.12.0</japicmp-version>
+    <japicmp-version>0.13.0</japicmp-version>
     <httpclient-version>4.5.5</httpclient-version>
     <httpcore-version>4.4.9</httpcore-version>
     <slf4j-version>1.7.2</slf4j-version>