htop: Bump version to 1.0

htop 1.0 was released 11-2011.  Bumping version in BuildRoot
from 0.9 to 1.0.

[Peter: Don't use old-style AUTOTARGETS]
Signed-off-by: Andy Kennedy <Andy.Kennedy@Adtran.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>