improving the API and the documentation

src/main/java/org/gservlet/ContextWrapper.java

@@ -56,7 +56,7 @@ public class ContextWrapper implements ServletContext {
 	* 
 	* Constructs a ContextWrapper for the given ServletContext
 	* 
-	* @param context the servlet context 
+	* @param context the ServletContext object 
 	*  
 	*/
 	public ContextWrapper(ServletContext context) {

src/main/java/org/gservlet/GServletApplication.java

@@ -20,7 +20,6 @@
 package org.gservlet;
 
 import static org.gservlet.Constants.APP_CONFIG_FILE;
-
 import java.io.File;
 import java.io.FileReader;
 import java.io.IOException;

src/main/java/org/gservlet/RequestWrapper.java

@@ -38,7 +38,7 @@ public class RequestWrapper extends HttpServletRequestWrapper {
 	* 
 	* Constructs a RequestWrapper for the given HttpServletRequest
 	* 
-	* @param request the request object 
+	* @param request the HttpServletRequest object 
 	*  
 	*/
 	public RequestWrapper(HttpServletRequest request) {
@@ -59,17 +59,24 @@ public void propertyMissing(String name, Object value) {
 
 	/**
 	* 
-	* Gets an attribute or a parameter value
+	* Gets a parameter or an attribute value
+	* 
+	* <p>
+	* if the name is equals to body and the request content-type is application/json, 
+	* this method parses the JSON request payload and returns a Groovy object.
+	* </p>
+	* 
+	* @param name the parameter or attribute name
+	* @return the parameter or attribute value
 	* 
-	* @param name the attribute or parameter name
-	* @return the attribute or parameter value
 	* @throws IOException the IOException
 	*/
 	public Object propertyMissing(String name) throws IOException {
 		if (name != null && name.equals("body") && getContentType().equalsIgnoreCase("application/json")) {
 			return new JsonSlurper().parse(getInputStream());
 		}
 		Object value = getParameter(name);
+		value = value != null ? value : getParameterValues(name);
 		return value != null ? value : getAttribute(name);
 	}
 
@@ -78,7 +85,7 @@ public Object propertyMissing(String name) throws IOException {
 	* Returns the file name of a part that was received within a multipart/form-data POST request
 	* 
 	* @param part the part that was received within a multipart/form-data POST request.
-	* @return the file name or null if it cannot be found
+	* @return the file name or null if it cannot be decoded
 	* 
 	*/
 	public String getFileName(Part part) {

src/main/java/org/gservlet/SessionWrapper.java

@@ -44,7 +44,7 @@ public class SessionWrapper implements HttpSession, Serializable {
 	* 
 	* Constructs a SessionWrapper for the given HttpSession
 	* 
-	* @param session the session object 
+	* @param session the HttpSession object 
 	*  
 	*/
 	public SessionWrapper(HttpSession session) {

src/main/java/org/gservlet/StartupListener.java

@@ -25,7 +25,7 @@
 
 /**
  * 
- * Bootstraps the application
+ * Bootstraps the GServlet application
  * 
  * @author Mamadou Lamine Ba
  *