backport (dpvc): Add a new operator // to be the same as / except its TeX form is a/b rather than \frac{a}{b}. This makes it possible get horizontal fractions in exponents, for example, where vertical fractions often don't look so good.
Changed paths:
branches/rel-2-3-dev/pg/lib/Parser/BOP/divide.pm
branches/rel-2-3-dev/pg/lib/Parser/Context/Default.pm