add travis

.travis.yml

@@ -0,0 +1,7 @@
+language: java
+
+jdk:
+  - oraclejdk8
+
+script:
+  - mvn clean org.jacoco:jacoco-maven-plugin:prepare-agent install sonar:sonar -Dsonar.login=$sonarlogin

pom.xml

@@ -35,6 +35,14 @@
         </developer>
     </developers>
 
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <sonar.language>java</sonar.language>
+        <sonar.host.url>https://sonarqube.com</sonar.host.url>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+    </properties>
+
     <build>
         <plugins>
             <plugin>