Revert "Fixed #161."

This reverts commit 592d348a217f03c4f02d0af246fc0d987cec235d.
Fixed formatting.
Allow the MemberMapper also to be specified in the Extensions
(Don't know if this is the right way to implement it, but maybe you can change it, so it's correct)
Fixed formatting.
Add a few Default Member Mappers...

XMLSerialisationMapper for example allows a Complex Type to be Serialised as XML into a String Database Field!
- Serializer fixes
- UNIT Test
Fixed formatting.
Merge branch 'pr/n163_jogibear9988'
Merge branch 'master' of https://github.com/igor-tkachev/bltoolkit