Ophcrack 3.2.1 released

This is mostly a maintenance release, except the support for our new vista_num tables. These tables crack 99.9% numeric passwords of length 1 to 12.

The code has been fixed to support large files bigger than 2GB even on 32-bits architectures. This problem was important to fix since the new professional tables are quite large and were not very well handled by some systems.

Qt and Qwt have been upgraded and it seems to fix some stability issues of the GUI on win32.