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Implement auto refresh for Main tabs & sub tabs, Initially the refresh rate will be 2 seconds.
Tables can be refreshed by calling ActionTableDataProvider.refresh() on the corresponding table data provider. This affects AbstractMainTabTableView (main tabs) + AbstractSubTabTableView (sub tabs), both of which are in charge of creating the SimpleActionTable widget. One option is to use decorator pattern to decorate ActionTableDataProvider behavior (add periodic refresh functionality).
We should make sure that only visible tables have auto-refresh enabled (I think it doesn't make sense to refresh data providers for tables which are not visible).
for now - every 2 seconds, make sure that there aren't any memory leaks.
closing ON_QA bugs as oVirt 3.1 was released: http://www.ovirt.org/get-ovirt/