Lately to fix one test build with certain VS version, not portable
change has been made, that broke build on other platforms.
Fix of couple of tests for older server versions.
and bytes, Ints, Longs were not exported.
API change: execute(Large)Batch return reference to const objects,
rather than pointers.
Restructuring of API and internal headers and introducing of new
separate header files.
Added statement testsuite to ctest - that was forgotten
Connector quality set to RC
