Add parameter "options" to EventTarget.off()

- additional: Typescript-Interfaces for off() functions updated

Fix #1235

This is literally all you have to do to break this function... just have
one single other group in your document.

Adds dmove to type definition for class Runner

findOne can return null

This can be a breaking change. But it will also fix the contract of the method.

### Fixed
 - fixed `css()` returning camelCased properties even though they were specified in kebap-case
 - fixed `ObjectBag` loosing information when calling `valueOf()` (Numbers lost its unit)

types: remove at() methods

node or new

This reverts commit aeea23be44.

This reverts commit aeea23be44.

This reverts commit dc7e039ef2.

reverting package-lock.json

Update svg.js.d.ts -> zoom

Add zoom():number to d.ts to get current zoom level

zoom should return `this`

Fixes typings starting tsc 4.2.4

update docs link

Types for Style

* typos in 1000-accesses.js

* typos in transforms.js

* typos in Controller.js

* typos in Runner.js

* typos in Timeline.js

* typos in Dom.js

* typos in Marker.js

* typos in Mask.js

* typos in Tspan.js

* typos in containerGeometry.js

* typos in event.js

* typos in css.js

* typos in data.js

* typos in sugar.js

* typos in EventTarget.js

* typos in List.js

* typos in Matrix.js

* typos in SVGArray.js

* typos in utils.js

* typos in RAFPlugin.js

* typos in Runner.js

* typos in Timeline.js

* typos in Dom.js

* typos in Pattern.js

* typos in arrange.js

* typos in Box.js

* typos in SVGNumber.js

* typos in utils.js

* typos in CONTRIBUTING.md

fix arc flags parsing

Allow strings to be passed as transform origin on TS

We need this to be able to pass strings like "top-right" or "center" as transform origin on TypeScript, as they're already supported on JavaScript.

@neomorfeo

Add style() to Container on TS bindings