Update jacoco version to 0.7.2

- It seems to have Java 8 related fixes:
  http://www.eclemma.org/jacoco/trunk/doc/changes.html

Change-Id: I5093ff1337fb074b4a6865c14887cb98c370ff1e

@@ -627,7 +627,7 @@
             <plugin>
                 <groupId>org.jacoco</groupId>
                 <artifactId>jacoco-maven-plugin</artifactId>
-                <version>0.7.1.201405082137</version>
+                <version>0.7.2.201409121644</version>
                 <executions>
                     <execution>
                         <id>default-prepare-agent</id>