[Conkeror] renamed spawn-process-helper

[John J Foerch]

Hi all,

  The auxiliary program spawn-process-helper is now called
conkeror-spawn-helper.  A couple of people had suggested this kind of
change to make it perfectly clear from the name, what package the
program belongs to, when installed in a system bin directory.  (Note it
does not need to be installed in the system's $PATH---conkeror will find
it in the conkeror directory.)

  Those who use Conkeror's external editing capability will need to run
`make' in the conkeror directory after pulling from the git repository.

-- 
John Foerch