title: The globalName option must be set for full-tree rollup global and UMD builds
body: <p>I have generated FountainJS angular2 project and write some code. I am using SystemJs with JSPM and TypeScript. Everything seems to work, but when i want build my project to dist, then gulp-task 'systemjs' throws me the error 'Error: The globalName option must be set for full-tree rollup global and UMD builds.', i wonder what can cause the error. I tried many things, but i am not able to find out the reason. Anyone had similar issue and knows the solution? </p>