Move final build file to the beginning and update guides to reflect this

initial/build.gradle

 }
 
 dependencies {
-    compile("org.springframework.boot:spring-boot-starter-web")
+    // tag::jetty[]
+    compile("org.springframework.boot:spring-boot-starter-web") {
+        exclude module: "spring-boot-starter-tomcat"
+    }
+    compile("org.springframework.boot:spring-boot-starter-jetty")
+    // end::jetty[]
+    // tag::actuator[]
+    compile("org.springframework.boot:spring-boot-starter-actuator")
+    // end::actuator[]
     testCompile("junit:junit")
 }
 

initial/pom.xml

     </parent>
 
     <dependencies>
+	    <!-- tag::jetty[] -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-starter-tomcat</artifactId>
+                </exclusion>
+	    </exclusions>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-jetty</artifactId>
+        </dependency>
+        <!-- end::jetty[] -->
+        <!-- tag::actuator[] -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-actuator</artifactId>
+        </dependency>
+        <!-- end::actuator[] -->
     </dependencies>
 
     <properties>