Build the project with Java 1.7.

Author: andreasrosdal

pom.xml

@@ -43,7 +43,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <maven.test.failure.ignore>false</maven.test.failure.ignore>
-        <java.version>1.8</java.version>
+        <java.version>1.7</java.version>
         <maven.source.version>2.4</maven.source.version>
         <maven.javadoc.plugin.version>2.10.1</maven.javadoc.plugin.version>
         <maven.clean.plugin.version>2.6.1</maven.clean.plugin.version>