ringmap #4, #5

[Alexandre Fiveg]

Since I did not get the hardware (10GbE adapter) I've solved an additional 
tasks during last two weeks: ringmap has now multi-threading functionality. 
Multiple libpcap applications can simultaneously capture traffic using 
ringmap-driver (until now single-threading was one of the ringmaps 
restrictions). 

+ currently ringmap works well in -current. I've done multiple tests with some 
easy libpcap-programms and with tcpdump as well. All tetst worked correctly. 

+ 10 GbE Adapter was delivered at Friday. I  prepared already the machines and 
installed the needed software, so on Monday starts the porting ringmap to 10G