API is mostly unchanged other than the addition of a lot more flags.
Should be less buggy since it has an actual test suite, and generally
has a more powerful regex syntax with better support for Unicode.
The bindings are written in MoonScript. For now the compiled form is
store in the repo for convenince.
Lua's built in regular expression engine is rather limited in features
compared to wx's, and operates on bytes rather than characters due to
not being unicode-aware.
Originally committed to SVN as r6473.
