Simplify syntax highlighting

Do not highlight array literal tags or compiler directives anymore.  This makes
it much easier to fix some syntax highlighting bugs that have been hanging
around for quite some time.

Fix issue #13
Fix issue #14
Fix issue #33

There's still a couple syntax highlighting issues but I'll wait to see if
anyone actually runs into them before spending a lot of time fixing them as
it will be quite challenging to fix the remaining issues with just the
SyntaxMode XML file.