jaxrs.providers delimiter change in 3.x

Hi,

I wanted to mention that the default delimiter appears to have changed in
3.x for the jaxrs.providers init-param. I upgraded from 2.x to 3.0.1, and
needed to add a comma as the delimiter between providers, otherwise I would
get an exception and the servlet wouldn't start. It appears that one may
specify class.parameter.split.char to their liking, but this does not cover
the default case.

TIA,

-Matt