import: crash fixed

hi Guillaume

Late reply, too.
By a stupid operation, I lost all mails and other files in a partition.

That bug you found is triggered by a small file less than 20 rows.
I fixed it and others, supressing all warning message under gcc.
The code is not tested enough yet.

The type uint is unrecognised by VC++ in file pgcsvfile.h.
So I fix it to "unsigned int".

And anyone know where to download PostgreSQL html version document?

Regards.