Turtle WoW

Just had a couple hordies spend 20 minutes or so turtling on their roof in Warsong Gulch...I don't even know HOW you get on the roof? Anyone want to tell me how to get up there? I assume it's some trick of jumping and terrain running, but I could be wrong.

Anyone know if there's a way to show mana on the player nameplate when druid shapeshifted? It'd be awful nice to know how much mana I have as well rather than only Rage or Energy.