A single pending ticket from 29-Jun-2011 suggests, that this script is not too buggy, but probably unmaintained as of today.
I'm interested in bringing user rename function into AccountManagerPlugin, because I feel, that this would fit there very well. Actually I already promised to do that work last year, but meanwhile got distracted by other development work.
I the original author still around? I'd like to especially agree about license and possible cooperation on the issue. Other comments and thoughts?
In case of no response I'll continue to execute my plan after two weeks, as that's the usual, agreed procedure for adopting hacks here.