- Changes to attempt support of FreeTDS 0.91 with

  - Changes to attempt support of FreeTDS 0.91 with
    Pyodbc.  This includes that string binds are sent as
    Python unicode objects when FreeTDS 0.91 is detected,
    and a CAST(? AS NVARCHAR) is used when we detect
    for a table.   However, I'd continue
    to characterize Pyodbc + FreeTDS 0.91 behavior as
    pretty crappy, there are still many queries such
    as used in reflection which cause a core dump on
    Linux, and it is not really usable at all
    on OSX, MemoryErrors abound and just plain broken
    unicode support.   [ticket:2273]