Removal of jmock test dependency and upgrading of mockito version to 1.8.5. Minor adjustments to other build deps and configurations (e.g. prevent groovy from being used as a transitive dep, since we only use it for tests).

gradle/javaprojects.gradle

@@ -31,11 +31,7 @@ dependencies {
     }
 
     testCompile 'junit:junit:4.7',
-            'org.mockito:mockito-core:1.8.3',
-            'org.jmock:jmock:2.5.1',
-            'org.jmock:jmock-junit4:2.5.1',
-            'org.hamcrest:hamcrest-core:1.1',
-            'org.hamcrest:hamcrest-library:1.1',
+            'org.mockito:mockito-core:1.8.5',
             "org.springframework:spring-test:$springVersion"
 
     // Use slf4j/logback for logging