Version 3.0.0

[mknadler]

The goals for v3 include:

• Making this work with dart-sass (now aka just 'sass') as the primary consuming build of sass
• Where possible, also support other builds and older versions of sass
• Make this more easily installable via npm
• Updating the underlying technologies (e.g. migrating to new versions of True and SassDocs, probably switching from grunt for task running to something else)
• Adding some new helpers for new use cases (e.g. css grid layouts)
• Just generally modernizing the repo.

Primarily the goal of this library will stay the same:

1. Futureproof uses of sass's random() function against upcoming changes.

• Current behavior: random(3px) will return 1, 2, or 3, since Sass strips the units right now.
• Future behavior: random(3px) will throw an error, and to get the same result as above you'd need to do something like random(3) * 1px, most likely. This will be an intermediary step.
• Futurest behavior: random(3px) will return 1px, 2px or 3px. This is what rando() already does and will continue to do.

2. Provide helpers so that, if you want to get a random number between -5 and 7, or randomly reorder a list, or slightly randomize a color's values, you don't need to think too hard about how to do it.