new driver

Version v06.40.0009 

This driver fixes a state transition problem which has always been in
the driver.  Who knows what may have been relying on this to work...

These all occur on the same hstmt handle...
1. SQLPrepare --->
2. SQLNumResultCols/SQLDescribeCol/etc.  ---->
3. (some error occurs from driver attempting to execute the statement in
the backend, such as a parser error)
4. SQLExecDirect (of some new query)

In step 4, SQLExecDirect would never execute anything because it was in
the incorrect state.

Byron