New pspp docs

[Michel Boaventura]

Hello,

I've created a blog with infos about PSPP. First I'm showing how to
cross-compile it and all of its dependencies.
Later I wish to start posting some tips and tutorials, and then put it
all together and make a new easy to use manual.
For now it's only in portuguese, but the codes and commands are universal :D

The address is: http://www.cecaps.ufmg.br/pspp/blog/

Best regards,

Michel