Add more notes to the Android README. (dm)


git-svn-id: svn://mielke.cc/main/brltty@6882 91a5dbb7-01b9-0310-9b5f-b28072856b6e
Rework the Android screen driver code a bit. (dm)


git-svn-id: svn://mielke.cc/main/brltty@6883 91a5dbb7-01b9-0310-9b5f-b28072856b6e
More reworking of the Android screen driver. (dm)


git-svn-id: svn://mielke.cc/main/brltty@6884 91a5dbb7-01b9-0310-9b5f-b28072856b6e