New build instructions for Ubuntu 12.04.3 Server with a new makefile

I have created instructions and a make file for building a static loaded yacoind using Ubuntu Server 12.04.3 running inside a VirtualBOX virtual machine. My hope is that this will make it much easier for people who are creating YACoin web services (like the exchanges) to get a perfect functioning yacoind executable that they can deploy on their website servers. Of course die hard users of Ubuntu or other Linux distributions who just want to get YACoin running on their computers should benefit as well, as pre-built packages are not always available or built correctly.