Added from_zero option

[maxflex]

Added from_zero option, so the animation starts from zero.

Usage:

window.odometerOptions =
  from_zero: true

[zackbloom]

Why not just initialize the content of the thing being odometered with the value 0?

[maxflex]

@zackbloom because when using, for example, Vue.js like I do, or AngularJS, or any of the other modern framework, you usually do stuff like this:

<span class='odometer'>{{ post.likes }}</span>

That way it would show the animation immediately with no other actions required framework-wise.
And it just feels like this option should be there, seems like such a common thing.

[zackbloom]

Makes sense. All the other options are camel case, so it should be fromZero. You might want to consider generalizing it to be just a from option which can be set to any number though (including 0).

[maxflex]

@zackbloom done

[alkul93]

Needed this option too, please merge