Preparing for ESLint 1.0.0 which disables all rules by default

[dominicbarnes]

In the current ESLint, some rules are engaged by default. As of 1.0.0 coming up soon, the default behavior will be the same as the --reset CLI flag, which is to disable all rules. (making everything opt-in)

I've used the migration guide to make these changes:

• I've removed any rules that were being expressly disabled
• I've added back any rules we were likely relying on (with some as warnings, rather than errors)

I would like to merge this and bump to 0.1.0 so I can start experimenting with the ESLint release candidates.