Add additional clarification to use_select_poll_workaround() function and allow it to be used outside the nose tests context.
Add additional clarification to use_select_poll_workaround() function
and allow it to be used outside the nose tests context.

nzlosh/st2,StackStorm/st2,nzlosh/st2,nzlosh/st2,Plexxi/st2,nzlosh/st2,StackStorm/st2,Plexxi/st2,StackStorm/st2,Plexxi/st2,StackStorm/st2,Plexxi/st2