Added PC-BSD as the most popular desktop BSD system right now
Revert "Added PC-BSD as the most popular desktop BSD system right now"

This reverts commit bd89ef0978403533dc0af7b041e6e0cd68547ff6.
added OpenBSD and MidnightBSD as "non-PRISM" BSDs.

According to our previous discussion.
Uhm. Oops :)

Now.
Merge pull request #273 from dertuxmalwieder/master

Added two "non-PRISM" BSDs.