Quoted MBean names are not split correctly

[grgrzybek]

hawtio/hawtio-integration@f356f788 introduced a RegExp to parse MBean names.
However the rules are more complex and this applies: https://stackoverflow.com/a/1732454

When MBean name uses quoted values, the rules are slightly different than for unquoted values.

I have a fix using a parser instead of magic RegExp.