--strict mode

[saadq]

Before releasing v1, I am thinking about making lynt's rules a lot more relaxed and to truly only check for errors (this would be using @suchipi's eslint-config-unobtrusive which I had initially rejected in #1). This would mean that rules like no-var, eqeqeq, prefer-const, curly etc which aren't really checking for errors but rather check for "best practices" would be turned off. The idea is that any JS/TS codebase should be able to use lynt's default config, regardless of a person's coding style and whether they are using an ES6 codebase or not.

With the --strict flag enabled, only then are these "best practices" rules turned on. Curious to hear thoughts on this.

[tunnckoCore]

Hm. That separation sounds good, yea.