support case-insensitive hql/jpql syntax highlighting in HQL editor

Currently, the HQL editor only changes hql/jpql keywords to maroon/purple-ish if the entire word is lower-case. Some people like to put all keywords in caps. Others prefer the first letter of the word to be capitalized. It would be nice to see a case-insensitive coloring strategy to give a more natural, user-friendly feel to the HQL editor that satisfies a variety of these tastes.