Package dependencies

[lmatteis]

I'm a bit of a newb with package.json and npm stuff, but it doesn't seem right that xstream and run are inside devDependencies. For instance, the jsonp driver has xstream as a peerDependency and run as a dependency: https://github.com/Widdershin/cycle-core/blob/bbad3d6ef832e6131f1c81a32de856b3d56ecda2/jsonp/package.json#L12

@nickbalestra @goshakkk not sure how peerDependencies work but maybe you guys can help?

[nickbalestra]

Yes those are actual dependencies, not devDepenencies

[lmatteis]

#15