Added options object. Specify gulpRelative path.

[mccambridge]

I had the same issue a lot of people were having. If I specified a root-relative path in my html, the assets weren't being found and the script errored out.

I created an options obj that allows you to specify a gulpRelative flag, where the script takes a root-relative path and appends it to the pwd. Now it finds the assets even if your html is located in a different directory than the gulpfile. Assets get hashed. Much win.

Fixes: #5 ... maybe others

Cheers!

[mccambridge]

looks like you might want to update your node version ;)

[buob]

Thanks for this fix @mccambridge, I hope you're planning on leaving your repo up, I'm hotlinking it until this is merged. 😁

Would this fix require node v4 in order to run if you're using Object.assign?