#3 to make FullTextIndexer, ValueIndexer, NameIndexer NOT FINAL

[Yaroslav Sokolov]

Hello,

I use embedded dbXml.

I need some extended behavior of indexers. For example,
I have big stop words file, and I would like to load it
in memory _only_one_time_. So, I would like just
inherit from FullTextIndexer and overwrite only this
behavior. Unfortunately, this class is final, and I
have to make COPY+PASTE of whole class FullTextIndexer :'(

Regards,
Yaroslav Sokolov.