[Bro] Build Fail on OS X Lion

[Siwek, Jonathan Luke]

> To be sure, I made a fresh clone of the bro git repo, tried to build without changing src/CMakeLists.txt, and the build failed. Then I made the change to src/CMakeLists.txt, and the build succeeded. No mod to netflow.pac in either build attempt.

Thanks for confirming that.  I'm going to get that change into the git repo since that's a "righter" way to order the include directories anyway.

> I still wonder what is out of the ordinary on my system. I'll check into it further when I get the chance.

I'm guessing you had built/installed some software locally (/usr/local, /opt/local, or /sw) that provided headers of the same name as what Bro needed (Event.h, Type.h) and so the compiler picked up those.  Not that it's "wrong", just different.

+Jon