Upgrade to Selenium 3.4.0

Closes gh-9205

spring-boot-dependencies/pom.xml

@@ -143,7 +143,7 @@
 		<rxjava.version>1.3.0</rxjava.version>
 		<rxjava-adapter.version>1.2.1</rxjava-adapter.version>
 		<rxjava2.version>2.1.0</rxjava2.version>
-		<selenium.version>3.3.1</selenium.version>
+		<selenium.version>3.4.0</selenium.version>
 		<selenium-htmlunit.version>2.26</selenium-htmlunit.version>
 		<sendgrid.version>2.2.2</sendgrid.version>
 		<servlet-api.version>3.1.0</servlet-api.version>
@@ -1990,6 +1990,12 @@
 				<groupId>org.seleniumhq.selenium</groupId>
 				<artifactId>selenium-remote-driver</artifactId>
 				<version>${selenium.version}</version>
+				<exclusions>
+					<exclusion>
+						<groupId>commons-logging</groupId>
+						<artifactId>commons-logging</artifactId>
+					</exclusion>
+				</exclusions>
 			</dependency>
 			<dependency>
 				<groupId>org.seleniumhq.selenium</groupId>
@@ -2000,6 +2006,12 @@
 				<groupId>org.seleniumhq.selenium</groupId>
 				<artifactId>selenium-support</artifactId>
 				<version>${selenium.version}</version>
+				<exclusions>
+					<exclusion>
+						<groupId>commons-logging</groupId>
+						<artifactId>commons-logging</artifactId>
+					</exclusion>
+				</exclusions>
 			</dependency>
 			<dependency>
 				<groupId>org.skyscreamer</groupId>