Major overhaul of the install system and approach

I rewrote the install procedure and scripts to be more clear and open.  There are now two scripts to install and run the oracle node, and one more should be added to run the client. Now anyone can clone this directory and run the install script to get a fresh version of bitcoin, bitmessage, and Orisi with every install without relying on someone else to update their box.

I've tested it a few times on different computers, but it is a major change so other people might want to test it.