don't do it in telescope.h, remove telescope.h from gencmd.awk and sort the headers in parse.y while here.

The 'if zero/nonzero then...' is a bit annoying. Add proper booleans to the grammar of the config and use them when appropriate. Makes the description and the review of configuration files easier. This means that the old set olivetti-mode = 1 can now be written as set olivetti-mode = true Compatibility with the previous integer values will be kept for a while.

IH_PATH is almost always defined, check that the path is the empty string.

it's not spelled `util.h' because otherwise it'd get included instead of /usr/include/util.h

with the conflict/reduce fix, it become illegal to have a newline after {, which is not good.

yacc/bison reports 8 shift/reduce conflicts because the rule styleopts optnl is redundant.