Merge lp://staging/~mandel/ubuntu-sso-client/fix-oneric-tests into lp://staging/ubuntu-sso-client

- Use a QNetworkAccessManager to work around the issue that on older version of Qt in the second request the finished signal is not fired (LP: #990048).

- Use a QNetworkAccessManager to work around the issue that on older version of Qt in the second request the finished signal is not fired (LP: #990048).

The main problem is that the signal is not fired, therefore we now have a collections of nams (kept in case we call shutdown in the middle). When the finish signal is fired we pass the nam (to call deleteLater) and the reply which contains the info from the request.

You will notice that some tests have been removed the reason is that they are not correct and the feature they were testing has been removed.

Also please take the following into account:

<alecu> mandel, also: make some wall clock tests to see that the time it takes the control panel to open and get all the info is not severely affected by using multiple nams
<alecu> mandel, and another thing that could break: the proxy password dialog may open too many times in this case...
<alecu> mandel, (multiple nams means that control panel api calls cannot reuse a single http connection)
<alecu> mandel, other than that, the code looks good, and it's a very good idea to try this as it will likely fix the issue with cached proxy credentials.