Test dependency updates (Mockito 2.12, HtmlUnit 2.28, Selenium 3.7.1, XMLUnit 2.5.1)

build.gradle

@@ -132,7 +132,7 @@ configure(allprojects) { project ->
 		testCompile("junit:junit:4.12") {
 			exclude group:'org.hamcrest', module:'hamcrest-core'
 		}
-		testCompile("org.mockito:mockito-core:2.11.0") {
+		testCompile("org.mockito:mockito-core:2.12.0") {
 			exclude group:'org.hamcrest', module:'hamcrest-core'
 		}
 		testCompile("com.nhaarman:mockito-kotlin:1.5.0") {

spring-test/spring-test.gradle

@@ -43,17 +43,17 @@ dependencies {
 	optional("org.apache.taglibs:taglibs-standard-jstlel:1.2.5") {
 		exclude group: "org.apache.taglibs", module: "taglibs-standard-spec"
 	}
-	optional("net.sourceforge.htmlunit:htmlunit:2.27") {
+	optional("net.sourceforge.htmlunit:htmlunit:2.28") {
 		exclude group: "commons-logging", module: "commons-logging"
 	}
-	optional("org.seleniumhq.selenium:htmlunit-driver:2.27") {
+	optional("org.seleniumhq.selenium:htmlunit-driver:2.28") {
 		exclude group: "commons-logging", module: "commons-logging"
 	}
-	optional("org.seleniumhq.selenium:selenium-java:3.6.0") {
+	optional("org.seleniumhq.selenium:selenium-java:3.7.1") {
 		exclude group: "commons-logging", module: "commons-logging"
 		exclude group: "io.netty", module: "netty"
 	}
-	optional("org.xmlunit:xmlunit-matchers:2.5.0")
+	optional("org.xmlunit:xmlunit-matchers:2.5.1")
 	optional("org.skyscreamer:jsonassert:1.5.0")
 	optional("com.jayway.jsonpath:json-path:2.4.0")
 	optional("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}")