Support max_line_length

[petemounce]

It would be great to support max_line_length so that files in source control are easier to review via diff since there would be less horizontal scrolling required.

[xuhdev]

This seems to be a duplicate of #17

[Asarew]

Would be nice to have this in!

[AshHeskes]

It should also force sublime to show rulers. Which it currently doesn't, I personally don't think wrapping should be part of what .editorConfig does. But it should show the ruler correctly.

[AshHeskes]

I also wonder if for JS if there's an .eslintrc file it should pull the max_line_length from there.