DBCJ(synchronized ADBCJ) API added 

Hi,
I did some work and implemented an API for programs already using JDBC to transplant smoothly.
These are my changes:
- sync API (not finished ,but simple case works)
- sync DEMO and some tests
- fixed some small problem of your version(SQL font case problem , etc )

Next, I would
- continue working on the sync API (make it support DAO frameworks like ibatis  , add transaction support , etc).
- try to modify the async ADBCJ API to make it more like JDBC for good portability.
- write some tests

My code may not be very pretty.  It would be better with some help of yours !

Thank you again for your work on this project !