Be more specific in defining reps.

It may not make a huge difference as `vinyl-fs` is in pre-1.0, but it makes me nervous to see a `*` in a dependency.
Merge branch 'specific-json' of https://github.com/surgeforward/gulp-add-src into surgeforward-specific-json

Conflicts:
	package.json
Merge branch 'surgeforward-specific-json'