Update jacoco plugin to 0.7.5

- This should reduce extra step needed for Eclipse users
  http://eclemma.org/jacoco/trunk/doc/changes.html

Change-Id: Ie618abde7918cc72c57184e340d98dc9d57f8e9d

@@ -747,7 +747,7 @@
             <plugin>
                 <groupId>org.jacoco</groupId>
                 <artifactId>jacoco-maven-plugin</artifactId>
-                <version>0.7.2.201409121644</version>
+                <version>0.7.5.201505241946</version>
                 <executions>
                     <execution>
                         <id>default-prepare-agent</id>