Changes to src files and binding.gyp to use msbuild 4.0
Added other data types

DB2 numeric types, Date/Timestamp, and XML/BLOB support.
CLOB support was already available as ARD. Please see added comments in
src.
test script for SAMPLE database
Added support for Timestamp data type
Merge pull request #1 from mnjrupp/master

I want to pull mnjrupp's changes into my fork