source readme: Add BrailleNote to the list of braille display drivers that require pyserial.

Fixes #3438.
l10n all languages:

From translation svn rev:10982.
l10n Minor language corrections.

From translation svn rev:11070
Revert "TreeInterceptor._get_passThrough: return true  if isAlive is false, even if _passThrough is false. This means that until a treeInterceptor is ready, passThrough will be considered on." (Reopens) Re #3388. Fixes #3446.

This reverts commit fde2dcbc9613ec0ddc991f798bbf9230ff6116ad.
api.setNavigatorObject: only switch review modes from object to document if the treeInterceptor is ready. Fixes #3388.