change p2p port for 2nd vertcoin network

change p2p port to be able to run both network on the same server

solve this:
 > Error binding to P2P port: Couldn't listen on any:9346: [Errno 98] Address already in use.
check both port on bootstrap nodes

allow new nodes who haven't already a node list in data/vertcoin2/addrs to reach the network
Merge pull request #22 from DragonShow/patch-1

change p2p port for 2nd vertcoin network
Merge pull request #23 from youvnor/master

Spaincoin support
Update README.md