OpenCMIS: update from Java 6 to Java 7

git-svn-id: https://svn.apache.org/repos/asf/chemistry/opencmis/trunk@1753706 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 8a83cea..4a97267 100644
--- a/pom.xml
+++ b/pom.xml
@@ -203,8 +203,8 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compile.source>1.6</maven.compile.source>
-        <maven.compile.target>1.6</maven.compile.target>
+        <maven.compile.source>1.7</maven.compile.source>
+        <maven.compile.target>1.7</maven.compile.target>
         <docs.start.url>https://chemistry.apache.org/java/opencmis.html</docs.start.url>
         <docs.download.directory>${project.build.directory}/downloaded-site</docs.download.directory>
         <!--