Remove Maven "exec" config, allowing for multiple programs.

Also add a README.pm, explaining how to run programs.

storage/json-api/README.md

@@ -0,0 +1,31 @@
+# Google Cloud Storage (GCS) and the Google Java API Client library
+
+Google Cloud Storage Service features a REST-based API that allows developers to store and access arbitrarily-large objects. These sample Java applications demonstrate how to access the Google Cloud Storage JSON API using the Google Java API Client Libraries. For more information, read the [Google Cloud Storage JSON API Overview][1].
+
+## Quickstart
+
+Install [Maven](http://maven.apache.org/).
+
+Build your project with:
+
+	mvn package
+
+You can then run a given `ClassName` via:
+
+	mvn exec:java -Dexec.mainClass=StorageSample \
+		-Dexec.args="ABucketName"
+
+## Products
+- [Google Cloud Storage][2]
+
+## Language
+- [Java][3]
+
+## Dependencies
+- [Google APIs Client Library for Java][4]
+
+[1]: https://cloud.google.com/storage/docs/json_api
+[2]: https://cloud.google.com/storage
+[3]: https://java.com
+[4]: http://code.google.com/p/google-api-java-client/
+

storage/json-api/pom.xml

@@ -27,23 +27,6 @@
         </includes>
       </resource>
     </resources>
-    <plugins>
-      <plugin>
-        <groupId>org.codehaus.mojo</groupId>
-        <artifactId>exec-maven-plugin</artifactId>
-        <version>1.1</version>
-        <executions>
-          <execution>
-            <goals>
-              <goal>java</goal>
-            </goals>
-          </execution>
-        </executions>
-        <configuration>
-          <mainClass>StorageSample</mainClass>
-        </configuration>
-      </plugin>
-    </plugins>
     <finalName>${project.artifactId}-${project.version}</finalName>
   </build>
   <dependencies>