Update main.cpp

changed minproto version to 90010 to provide the best sync experience ;)

we will provide the connecting nodes between proto 60009 and 60010 ( 6 pcs ).

60009 will be phased out at block 185k ( connection between 60009 and 60010 will be disconnected )

upnp has been enabled in the binaries to provide more 60010 clients to the network.