GoogleAdWordsAPI doesn't read user agent from licensing.properties file

We should always read the user agent from the licensing.properties file. This is being done inconsistently in the class right now.

bidmgr/src/com/thesearchagency/searchengines/google/GoogleAdWordsAPI.java

protected AdWordsUser getAdwordsUser()
{
AdWordsUser ret = null;
String email = theUsername;
String password = thePassword;
String clientID = theCustomerID;
String developerToken = theAPIToken;
String userAgent = "The Search Agency";
...

protected void prepareService(Remote aService, boolean isResellerService)
{
if (aService instanceof Stub) {
Stub stub = (Stub)aService;

String namespace = API_NAMESPACE;

if (isResellerService)

{ namespace = getResellerNamespace(); }

String email = theUsername;
String password = thePassword;
String developerToken = theAPIToken;

if (password == null)

{ email = getMCCEmail(); password = getMCCPassword(); }

if (developerToken == null)

{ developerToken = getMCCDeveloperToken(); }

String userAgent = getMCCUserAgent();