Add alerting and getinfo_MP

Please see notes here guys http://pastie.org/pastes/9733526/text?key=luz9fdv1whtvfhn1sjvckg

Before merging can we grab an hour to build this and run over how it works/test it out.

Thanks
Z
Ah, very, very good point. I missed the shutdown.

I'm playing around with the whole stuff at the moment and I found `bool AbortNode(const std::string &strMessage)` which is global via main.h. If QT, then strMessageis shown as modal, if it's daemon mode, then strMessage is printed to the console. Then a shutdown is initiated.