Allow to disable some rules when fixing on save

[pvdlg]

The Fix on Save feature is really useful, but with some rules it can sometime get in the way.
For example with the capitalized-comments.

When developing is sometimes to comment out a few lines of code to test something and revert the commenting to re-eanable the code.

With the capitalized-comments rule, if Fix on Save is enable, commenting a few line of code will capitalize the first letter. When un-commenting the capital letter will stay and has to be manually fixed.

For example, this following code might create a problem and I comment it to test:

// if (condition) {
//   createPossibleProblem();
// }

On save if becomes If:

// If (condition) {
//   createPossibleProblem();
// }

When I un-comment the code If stay capitalized.

See the same feature on linter-eslint : AtomLinter/linter-eslint#795

[pvdlg]

Related avajs/eslint-plugin-ava#173

Unfortunately since the 4.3.0 release of eslint-plugin-ava the fix on save feature has to be disabled if you use ava...

[sindresorhus]

Yes, this would be a useful feature. We could include some by default, like capitalized-comments and ava/no-only-test. Pull request welcome.