regression in trunk: anonymous API requests throw an error when the anonymous has view access #1597

eg. http://localhost/trunk/index.php?module=API&method=API.getProcessedReport&format=XML&apiModule=UserCountry&apiAction=getCountry&idSite=7&period=year&date=2009-01-01&filter_limit=-1

throws "API returned an error: You can't access this resource as it requires an 'view' access for the website id = 7."

but this works fine in the 1.0 branch. Maybe introduced in [2901] ?

Note: it would be nice to add a unit test (or integration test) for this

(In [2949]) refs #1597 - fixes typo; it's too early in the morning for me to think about unit tests...

(In [2998]) fixes #1597 - add unit test