Autoconf and Automake in myPGP

After several hours reading manuals I could add the Autoconf and Automake support to the project. This changes the way myPGP is compiled: now you have to type "configure", "make" and as root "make install" (if you want to copy it into your system).

This tools ease portability, and among many things allow the use of Gettext to get intenationalization.

This is the first time I use these tools, so many things can be wrong. If you are an experienced user, please tell me the mistakes I've made (if any).

At this point the project is installable (you can compile it in a standard way and get it into your system). Today is a happy day :).