Updating maven project to target Java 7

Author: barancev

Diff for: maven/pom.xml

@@ -232,8 +232,8 @@
                 <plugin>
                     <artifactId>maven-compiler-plugin</artifactId>
                     <configuration>
-                        <source>1.6</source>
-                        <target>1.6</target>
+                        <source>1.7</source>
+                        <target>1.7</target>
                         <debug>true</debug>
                         <encoding>utf-8</encoding>
                         <optimize>true</optimize>