More speakup mods and bug fixes

[David]

fixed bug in set vars, speakup shift f1.
improved cursor routing, speakup space.
on-screen find, speakup cursor up/down finds up or down.
speakup f and speakup shift f lets you enter up to 16 characters for the
find and then finds down, speakup f or up speakup shift f.
find buffers are console speciffic, a different one for each console.
goto is back, absolute line/columns only. no plus/minus numbers.
say_word_control variable if set to one now does more.
see README for more info.
Get it at the usual davidborowski.ddns.net via http.
Have fun, Yap at me if you crash.
We try to test it pretty well before unleashing it on other unsuspecting people.