Use dependency management in snippets

_includes/build.gradle

@@ -1,3 +1,17 @@
-dependencies {
-    compile '{@= groupId @}:spring-cloud-starter-zookeeper-all:{@= version @}'
+buildscript {
+    dependencies {
+        classpath "io.spring.gradle:dependency-management-plugin:0.5.2.RELEASE"
+    }
+}
+
+apply plugin: "io.spring.dependency-management"
+
+dependencyManagement {
+     imports {
+          mavenBom '{@= groupId @}:spring-cloud-zookeeper:{@= version @}'
+     }
+}
+
+dependencies {
+    compile '{@= groupId @}:spring-cloud-zookeeper-discovery'
 }

_includes/pom.xml

@@ -1,7 +1,16 @@
+<dependencyManagement>
+    <dependencies>
+        <dependency>
+            <groupId>{@= groupId @}</groupId>
+            <artifactId>spring-cloud-zookeeper</artifactId>
+            <version>{@= version @}</version>
+            <type>pom</type>
+            <scope>import</scope>
+        </dependency>
+    </dependencies>
 <dependencies>
     <dependency>
         <groupId>{@= groupId @}</groupId>
-        <artifactId>spring-cloud-starter-zookeeper-all</artifactId>
-        <version>{@= version @}</version>
+        <artifactId>spring-cloud-zookeeper-discovery</artifactId>
     </dependency>
 </dependencies>