Specify root option in eslintrc templates

[eliperelman]

Fixes #973.

I'm not sure how this wasn't happening before, but when running without the --no-eslintrc bits in the precommit I would get errors around eslint being unable to load the config file. I think this was related to eslint trying to load these nested eslintrc files to lint their subdirectories, which we definitely don't want during development.

So now I added --no-eslintrc -c ./.eslintrc.js so it will lint the monorepo using only our top-level eslintrc. When you run it like this though, eslint gives you warnings that the create-project eslintrc files are ignored by default, so the eslintignore line addition is to add these back to being linted, but not used as config.

[edmorley]

I'm not sure I follow the --no-eslintrc bits. Were the files not being linted before?
Could you add some more explanation to the PR description? :-)

[eliperelman]

@edmorley updated. I honestly don't know if they were being linted before or not at this point. 🤣

[edmorley]

If Travis isn't triggered I would recommend amending the commit (or rebasing if applicable) and then force pushing over closing/opening the PR (creates less notification emails).

[eliperelman]

Yeah, this is closed because I deleted the fork. 😢

[edmorley]

Ah! :-)