Update dev guide (spec) so it points to WADL for API calls

Closes-Bug: #1212374

Change-Id: I1e004c323812b28ea9cd31260f8ff992113664ea
author: diane fleming

openstack-compute-api-2/pom.xml

@@ -46,18 +46,8 @@
             <plugin>
                 <groupId>com.rackspace.cloud.api</groupId>
                 <artifactId>clouddocs-maven-plugin</artifactId>
-                <version>1.13.0</version>
+                <version>1.15.0</version>
                 <executions>
-                    <execution>
-                        <id>goal1</id>
-                        <goals>
-                            <goal>generate-pdf</goal>
-                        </goals>
-                        <phase>generate-sources</phase>
-                        <configuration>
-                            <highlightSource>false</highlightSource>
-                        </configuration>
-                    </execution>
                     <execution>
                         <id>goal2</id>
                         <goals>