Gulp Task should not demand gulp be globally installed on an agent

[drub0y]

The Gulp task has support for executing gulp from the source directory (e.g. node_modules), yet it still demands that Gulp is installed globally on an agent. This means one must, at bare minimum, go add a capability of gulp to one's build agents just so they can even be considered candidates for builds that use the Gulp task. Given the way the Gulp task is written, this demand should not be necessary and the only demand the Gulp task should actually make is for node.

[pascalberger]

It seems like this (and #1036) was fixed by a2ecabd

[ericsciple]

Thanks @pascalberger

[drub0y]

Cheers guys!