documentation typo
redundant
whitespace
more redundancy...
use a real mode map and remove the redundant comment-dwim
don't set font-lock regexps to nil

this isn't necessary
use a real syntax table
bugfix, I think (?)
don't set comment-column

it has a default value, so doesn't require initializing.  also, setting
it here might override a user's preference
make font-lock-keywords buffer-local
clean up comments
refactor indent function
refactor `gnuplot-run-file'
don't change the window configuration

gnuplot-run-file now saves the window configuration before raising
the *gnuplot errors* buffer.  hitting 'q' from inside that buffer kills
it and restores the previous window arrangement.  nice.
add a mode hook
automatically open *.gnuplot and *.gp in gnuplot-mode
add C-c C-c keybinding

I think this is idiomatic
update commentary
update version #

not that it really means anything...
clean up indentation a bit