Create a JSON POST request for Android

JSONHttpPost.java

	/**
	 * Create HttpPost request with a JSON string body, expecting a JSON response
	 */
	private HttpPost createJSONPostRequest(String emailAddress, String data) throws JSONException, UnsupportedEncodingException
	{
		JSONObject json = new JSONObject();
		json.put("protocolVersion", "1.0");
		json.put("emailAddress", emailAddress);
		json.put("data", data);
		String jsonString = json.toString();

		HttpPost request = new HttpPost(serviceURLString);
		request.setHeader("Accept", "application/json");
		request.setHeader("Content-type", "application/json");
		request.setEntity(new StringEntity(jsonString));
		
		return request;
	}