Update dependency management for Selenium and its HTMLUnit Driver

Closes gh-5705

spring-boot-dependencies/pom.xml

@@ -132,7 +132,7 @@
 		<postgresql.version>9.4.1208.jre7</postgresql.version>
 		<reactor.version>2.0.7.RELEASE</reactor.version>
 		<reactor-spring.version>2.0.7.RELEASE</reactor-spring.version>
-		<selenium.version>2.52.0</selenium.version>
+		<selenium.version>2.53.0</selenium.version>
 		<sendgrid.version>2.2.2</sendgrid.version>
 		<servlet-api.version>3.1.0</servlet-api.version>
 		<simple-json.version>1.1.1</simple-json.version>
@@ -1873,12 +1873,12 @@
 			</dependency>
 			<dependency>
 				<groupId>org.seleniumhq.selenium</groupId>
-				<artifactId>selenium-api</artifactId>
+				<artifactId>htmlunit-driver</artifactId>
-				<version>${selenium.version}</version>
+				<version>${htmlunit.version}</version>
 			</dependency>
 			<dependency>
 				<groupId>org.seleniumhq.selenium</groupId>
-				<artifactId>selenium-htmlunit-driver</artifactId>
+				<artifactId>selenium-api</artifactId>
 				<version>${selenium.version}</version>
 			</dependency>
 			<dependency>

spring-boot-test-autoconfigure/pom.xml

@@ -62,7 +62,7 @@
 		</dependency>
 		<dependency>
 			<groupId>org.seleniumhq.selenium</groupId>
-			<artifactId>selenium-htmlunit-driver</artifactId>
+			<artifactId>htmlunit-driver</artifactId>
 			<optional>true</optional>
 		</dependency>
 		<dependency>

spring-boot-test/pom.xml

@@ -77,7 +77,7 @@
 		</dependency>
 		<dependency>
 			<groupId>org.seleniumhq.selenium</groupId>
-			<artifactId>selenium-htmlunit-driver</artifactId>
+			<artifactId>htmlunit-driver</artifactId>
 			<optional>true</optional>
 		</dependency>
 		<dependency>
@@ -126,6 +126,10 @@
 			<groupId>com.jayway.jsonpath</groupId>
 			<artifactId>json-path</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.seleniumhq.selenium</groupId>
+			<artifactId>selenium-api</artifactId>
+		</dependency>
 	</dependencies>
 	<build>
 		<plugins>