Creates a new event loop which is powered by libuv

This function is used in tandem with libgreen's PoolConfig type as a value for the event_loop_factory field. Using this function as the event loop factory will power programs with libuv and enable green threading.

Example

extern crate rustuv;
extern crate green;

#[start]
fn start(argc: int, argv: **u8) -> int {
    green::start(argc, argv, rustuv::event_loop, main)
}

fn main() {
    // this code is running inside of a green task powered by libuv
}