Add option to trim leading zero from numeric values with a decimal point

[owenleonard]

Here's a solution for Issue #110. I don't know if you want to head down this direction of adding options for scss-lint settings. I know there are other scss-lint settings I'd like to bring over to SassBeautify, and doing each one at a time could complicate things rather quickly.

I also added a unit test, but I'm having trouble running the unit tests so I'm not 100% sure it will pass (although it looks like it should)

I should also mention I left the current behavior as the default.

[owenleonard]

I figured out how to run the unit tests, so I verified they are passing.

[Romainpetit]

Yes please ! 🐑

[owenleonard]

Any word on these pull requests? Even a rejection is better than silence.

[bobbwal]

Would be nice to have this in.

[attenzione]

did you tested for

.selector { 
  content: 'some text with 0.5$ inside';
}