-downgrade JDK source version

-minor changes

Author: Krasnyanskiy

pom.xml

@@ -153,8 +153,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.1</version>
                 <configuration>
-                    <source>1.7</source>
-                    <target>1.7</target>
+                    <source>1.6</source>
+                    <target>1.6</target>
                 </configuration>
             </plugin>
             <plugin>

src/integration-test/java/com/jaspersoft/jasperserver/jaxrs/client/apiadapters/resources/ResourcesServiceIT.java

@@ -5,7 +5,7 @@
 import com.jaspersoft.jasperserver.jaxrs.client.core.JasperserverRestClient;
 import com.jaspersoft.jasperserver.jaxrs.client.core.RestClientConfiguration;
 import com.jaspersoft.jasperserver.jaxrs.client.core.Session;
-import junit.framework.Assert;
+import org.testng.Assert;
 import org.testng.annotations.AfterMethod;
 import org.testng.annotations.BeforeMethod;
 import org.testng.annotations.Test;