More martial arts techniques and tutorials in the AKBAN-wiki

We added more martial arts techniques in video to our database, the AKBAN-wiki. * Ninjutsu tutorial - Movement, Tai Sabaki‎ * 1st Ganseki, Underhook - Ninjutsu tutorial‎ * Half guard pass by pushing the knee while sitting - A BJJ technique. * Hook swipe to side control or mount - A BJJ technique. * First gi choke * Second gi choke * Taking the back from turtle