acme: scrolling fixes + new home/end
Home and End previously navigated between
two different window locations: the top and
the bottom of the text. Now they include a
third waypoint: the location where typing last
happened. Thus, in a win window, typing
ls -l
<home>
scrolls to the beginning of the ls -l output.
A second <home> continues to the top of the file.
Makes Send scroll always, along with writes by
external programs to +Errors.
R=r
CC=mccoyst
http://codereview.appspot.com/4830051
4 files changed
