SEC-3178: Update to JUnit 4.12

gradle/javaprojects.gradle

@@ -26,7 +26,7 @@ ext.hsqlVersion = '2.3.2'
 ext.jacksonDatavindVersion = '2.4.4'
 ext.jettyVersion = '6.1.26'
 ext.jstlVersion = '1.2.1'
-ext.junitVersion = '4.11'
+ext.junitVersion = '4.12'
 ext.logbackVersion = '1.1.2'
 ext.powerMockVersion = '1.6.2'
 ext.seleniumVersion = '2.44.0'