499481: ProtocolException below UserFavoritesService.getFavoriteIds (thrown in Session$RequestTemplate.getStatusCode)

Workaround for bug 500909 - treat a 406 status with message "Account 
temporarily blocked" as authentication failure. 

Also show the login error message to the user.

Bug: 499481
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=499481
5 files changed