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
Maybe for the future: here is a tutorial for using multisig via P2SH: https://gist.github.com/dexX7/96c7ca99f909c15fad68