Update to Boot 2.0.0

Also runs with Java 9 (but can't build yet because of wro4j).

.gitignore

@@ -6,3 +6,4 @@ target/*
 *.iml
 /target
 _site/
+.vscode/

.mvn/wrapper/maven-wrapper.properties

@@ -1 +1 @@
-distributionUrl=https://repo1.maven.org/maven2/org/apache/maven/apache-maven/3.3.3/apache-maven-3.3.3-bin.zip
+distributionUrl=https://repo1.maven.org/maven2/org/apache/maven/apache-maven/3.5.2/apache-maven-3.5.2-bin.zip

pom.xml

@@ -5,12 +5,12 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.springframework.samples</groupId>
   <artifactId>spring-petclinic</artifactId>
-  <version>1.5.1</version>
+  <version>2.0.0</version>
 
   <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
-    <version>1.5.4.RELEASE</version>
+    <version>2.0.0.M6</version>
   </parent>
   <name>petclinic</name>
 
@@ -26,7 +26,6 @@
     <webjars-jquery-ui.version>1.11.4</webjars-jquery-ui.version>
     <webjars-jquery.version>2.2.4</webjars-jquery.version>
     <wro4j.version>1.8.0</wro4j.version>
-    <thymeleaf.version>3.0.6.RELEASE</thymeleaf.version>
 
     <cobertura.version>2.7</cobertura.version>
 
@@ -53,18 +52,17 @@
     <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-thymeleaf</artifactId>
-      <exclusions>
-      	<exclusion>
-      		<groupId>nz.net.ultraq.thymeleaf</groupId>
-      		<artifactId>thymeleaf-layout-dialect</artifactId>
-      	</exclusion>
-      </exclusions>
     </dependency>
     <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-test</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+        <groupId>javax.xml.bind</groupId>
+        <artifactId>jaxb-api</artifactId>
+        <version>2.3.0</version>
+    </dependency>
 
     <!-- Databases - Uses HSQL by default -->
     <dependency>
@@ -140,22 +138,6 @@
           </execution>
         </executions>
       </plugin>
-      <plugin>
-        <groupId>org.codehaus.mojo</groupId>
-        <artifactId>cobertura-maven-plugin</artifactId>
-        <version>${cobertura.version}</version>
-        <configuration>
-          <check />
-        </configuration>
-        <executions>
-          <execution>
-            <goals>
-              <goal>clean</goal>
-              <goal>check</goal>
-            </goals>
-          </execution>
-        </executions>
-      </plugin>
 
       <!-- Spring Boot Actuator displays build-related information if a git.properties
         file is present at the classpath -->