Added new AT-SPI locator for proxy button on firstboot menu
Added blocked by bug to proxy test (no AT-SPI locators) fixed and improved failing tests
added a blockeByBug for firstboot_check_back_button as functionality of back button was not the same and the function was changed to test RHEL5 firstboot behavior
Added priority to tests to assure that one runs after the other. Dependancy didnt assure it
increased wait to assure the product status are reflected on GUI before tsting for the same