Upgrade invalidates data source names [CR 487858]

In Sybase IQ 15.x, 32-bit drivers are now located in the bin32 directory instead of win32. and 64-bit drivers are now in the bin64 directory instead of x64. Therefore, when migrating from 12.x to 15.x, you may need to update registries and applications to locate libraries. For example, win32\dbodbc11.dll is now in bin32.