Fix pylint plugin to rely on ast instead of __import__()
Fix pylint plugin to rely on ast instead of __import__()

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