toaster: Update tests to reflect front end changes

toaster: Update tests to reflect front end changes

 - Browser test we changed the project heading access to use the class name
 - Update toastergui unit test for additional gotoUrl property
 - On faster browsers we had a race for layer details inputs being
   visible

Signed-off-by: Michael Wood <michael.g.wood@intel.com>
Signed-off-by: bavery <brian.avery@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>