Convert the FreedomScientific driver to use readBraillePacket(). (dm)


git-svn-id: svn://mielke.cc/main/brltty@7518 91a5dbb7-01b9-0310-9b5f-b28072856b6e
Restore the clearing of the missing acknowledgement count in the FreedomScientific driver. (dm)


git-svn-id: svn://mielke.cc/main/brltty@7519 91a5dbb7-01b9-0310-9b5f-b28072856b6e
Only set focus to an element which is already visible. (dm)


git-svn-id: svn://mielke.cc/main/brltty@7520 91a5dbb7-01b9-0310-9b5f-b28072856b6e