add maven default goal (verify, rat, clirr, checkstyle, javadoc) and run it on travis

Author: PascalSchumacher

.travis.yml

@@ -21,7 +21,7 @@ jdk:
   - oraclejdk8
 
 script:
-  - mvn test apache-rat:check clirr:check checkstyle:check javadoc:javadoc
+  - mvn
 
 after_success:
   - mvn clean cobertura:cobertura coveralls:report

pom.xml

@@ -266,6 +266,7 @@ file comparators, endian transformation classes, and much more.
   </properties>
 
   <build>
+    <defaultGoal>clean verify apache-rat:check clirr:check checkstyle:check javadoc:javadoc</defaultGoal>
     <pluginManagement>
       <plugins>
         <plugin>