[orca-list] Structural navigation objects should be navigable by a list of dialog

[José Vilmar Estácio de Souza <vilmar informal com br>]

 Hi all.

For those who would like to see implemented in the Orca a function  to 
browse in Firefox through their objects, I recommend visiting the 
following link:

https://bugzilla.gnome.org/show_bug.cgi?id=620331

In my opinion a great job was done and it should be pushed to master.
Thanks.