3.18.1 - 14 October 2015

Web:

* Improve presentation of canvas elements which lack fallback content

* Fix for Orca filtering out text elements which have no size due to
  authoring

* Fix for Orca not doing SayAll on load when the focused object is the
  document frame

* Workaround several issues which was causing the caret to get "stuck"

* Add another fallback "guess" to the label inference code for fields
  in poorly-authored forms

* Present Firefox "door hanger" alerts

* Filter out selection event spam from browser chrome autocompletes

* Prefer name over label when generating labelOrName (W3C compliance)

* Ensure we present aria-roledescription for non-focusable landmarks

* Include object role in the list of landmarks dialog

* Don't treat objects with ROLE_LABEL as an ancestor (causes double
  presentation of widget name)

* Process DOM changes more efficiently for performance

New and updated translations (THANKS EVERYONE!!!):

   cs            Czech                       Marek Černocký
   de            German                      Wolfgang Stöggl
   el            Greek                       Dimitris Spingos
   it            Italian                     Milo Casagrande
   pt_BR         Brazilian Portuguese        Tiago Casal
   sr            Serbian                     Марко Костић
   sr@latin      Serbian                     Милош Поповић

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