Mask/Fill interaction tests + fix (#3615) ...

* added expectations

* specify hitArea

* change expectation

* added filterArea expectation

* heed hitArea when mask present

* typo

* removed filterArea from interaction

Rebasing on dev to get MockPointer changes for #3375 (#3546) ...

* Fix issue #2662 Added a touch counter instead of flag to ensure the correct touch count

* See #2662 --- bending to the will of eslint

* See #2662 --- Added _touchCount to interactiveTarget.js, and removed an extraneous line in InteractionManager.js

* Removed an unnecessary check for _touchCount === undefined, since the mixin for interactiveTarget will always set this

* Fix issue #2662 Added a touch counter instead of flag to ensure the correct touch count

* See #2662 --- bending to the will of eslint

* See #2662 --- Added _touchCount to interactiveTarget.js, and removed an extraneous line in InteractionManager.js

* Removed an unnecessary check for _touchCount === undefined, since the mixin for interactiveTarget will always set this

* Adding cancel events to interaction manager

* Refactoring InteractionManager to normalize all events to PointerEvents. Also updated InteractiveTarget to handle multiple touch or pointer events by recording pointerId for all tracked events, rather than just counting events. Finally, InteractionManager now updates on all tracked events, rather than just mouse events, so it should send move events when UI objects move underneath any held event, not just the mouse

* Typo: mouse is not a function

* InteractionManager normalizeToPointerData now returns an array of normalized events for TouchEvents with multiple changedtouches

* Typo: no such thing as onPointerStart

* Fixing some more typos: trying to read the pointerId of un-normalized events

* Typos: un-normalized events don't have a pointerType

* Added identifier property to InteractionData, and got rid of some typos---trying to read pointerId from un-normalized events

* Forgot to bind onPointerCancel

* Refactoring interactiveTarget.js a bit, so that over, left down and right down are pointer properties, not mouse properties.

* Forgot an export default

* Changed the mixin pattern for Pixi.interaction.interactiveTarget, so that this is bound correctly, so that DisplayObjects can each get a unique object for tracking pointers

* Fixed some typos, moved interactiveTarget back to being an object, and released InteractionData after touch up/cancelled events

* Small fixed

* Safari compatibility

* hasOwnProperty fix

* Safer to use a string for mouse pointer than a number

* InteractionManager should now handle native DOM pointer events with pointerType mouse or touch by emitting mouse and touch events, respectively

* InteractionManager test now respects the refactored spec for InteractionManager

* Pointer events exclusive

* String.startsWith is not available in all browsers esp. older version of Safari. As it's just used in one place we can use a RegExp here too

* Moving from regex, slightly faster

* See #3149 --- Add support for touchcancel and pointercancel (#3375)

* Fix issue #2662 Added a touch counter instead of flag to ensure the correct touch count

* See #2662 --- bending to the will of eslint

* See #2662 --- Added _touchCount to interactiveTarget.js, and removed an extraneous line in InteractionManager.js

* Removed an unnecessary check for _touchCount === undefined, since the mixin for interactiveTarget will always set this

* Fix issue #2662 Added a touch counter instead of flag to ensure the correct touch count

* See #2662 --- bending to the will of eslint

* See #2662 --- Added _touchCount to interactiveTarget.js, and removed an extraneous line in InteractionManager.js

* Removed an unnecessary check for _touchCount === undefined, since the mixin for interactiveTarget will always set this

* Adding cancel events to interaction manager

* Refactoring InteractionManager to normalize all events to PointerEvents. Also updated InteractiveTarget to handle multiple touch or pointer events by recording pointerId for all tracked events, rather than just counting events. Finally, InteractionManager now updates on all tracked events, rather than just mouse events, so it should send move events when UI objects move underneath any held event, not just the mouse

* Typo: mouse is not a function

* InteractionManager normalizeToPointerData now returns an array of normalized events for TouchEvents with multiple changedtouches

* Typo: no such thing as onPointerStart

* Fixing some more typos: trying to read the pointerId of un-normalized events

* Typos: un-normalized events don't have a pointerType

* Added identifier property to InteractionData, and got rid of some typos---trying to read pointerId from un-normalized events

* Forgot to bind onPointerCancel

* Refactoring interactiveTarget.js a bit, so that over, left down and right down are pointer properties, not mouse properties.

* Forgot an export default

* Changed the mixin pattern for Pixi.interaction.interactiveTarget, so that this is bound correctly, so that DisplayObjects can each get a unique object for tracking pointers

* Fixed some typos, moved interactiveTarget back to being an object, and released InteractionData after touch up/cancelled events

* Small fixed

* Safari compatibility

* hasOwnProperty fix

* Safer to use a string for mouse pointer than a number

* InteractionManager should now handle native DOM pointer events with pointerType mouse or touch by emitting mouse and touch events, respectively

* InteractionManager test now respects the refactored spec for InteractionManager

* Pointer events exclusive

* String.startsWith is not available in all browsers esp. older version of Safari. As it's just used in one place we can use a RegExp here too

* Moving from regex, slightly faster

* Fixed interaction tests for the new world of pointer events

Marks the interaction event as being of the type PIXI.interaction.InteractionData in jsdocs

Improved documentation ...

Class member documentation improved via removal of unnecessary @memberofs - more members now show up in the docs.
Class getter/setter documentation improved using technique above, and also by removing documentation for setters. Documentation was only showing the setter docs, whereas the getter is where the important information is. JSDoc maintainers themselves recommend just doccing the getter jsdoc3/jsdoc#973
Documented a few classes to let devs know that they are automatically created by PIXI and added to renderer.plugins, like interactionManager and prepare

A few doc updates (#3527)

expose moveWhenInside docs (#3471)

better code

cocoonJS interaction position fix

spelling

Fixed mousedown events not firing on browsers that supports pointerevents ...

Changed ordering of listeners, so that they are normalized events are sent in the same order as non-normalized events. pointer event first, mouse/touch event 2nd

added a check for 'null' before attempting to traverse 'children' property on DisplayObject

remove some lingering events from interaction manager

Merge branch 'dev' into interaction-pointer-fixes

cleanup some export defaults

Huge refactor to match a new shiny eslint file.

Fix readonly errors when normalizing touch events on ios

Fixes to have pointer events work with the new eventData class

merge #2828

Adding support for pointer events (#2997) ...

* Adding support for pointer events

* eslint fix

* more eslint

* And again, really need an npm command somewhere to do the auto eslint fix with the correct spacings

* eslint take #12

Prefer const (#3002) ...

* added prefer-const rule to .eslintrc

* eslint const autofixes

* manual let to const changes; lint free;

* added brace style 'allman' to eslintrc

* brace style, comment fixes and default arg

* brace style fixes

* more brace styles

* Point default args

* Point brace styles

* Observable Point default args

* more brace styles

* jsdoc comment style

* brace style

* brace styles and small jsdoc fix

* brace styles

* removed unneeded eslint inline comment

* brace styles; lint free

add InteractionEvent class. assigning event's target/currentTarget.

Merge pull request #2996 from themoonrat/interaction-mouseover-fix-es6 ...

Fixes mouseover behaviour

Manually merge #2929

Fixes mouseover behaviour

some more es6 changes (#2969) ...

* some more es6 changes
- const instead of let if possible
- arrow functions
- string templates
- argument defaults

* object property shorthand

* some more es6 changes
- const instead of let if possible
- arrow functions
- string templates
- argument defaults

* Revert "Merge branch 'dev-es6-sb' of github.com:stbaer/pixi.js into dev-es6-sb"

This reverts commit 8d3af81, reversing
changes made to e8b9948.

* Revert "Merge branch 'dev-es6' into dev-es6-sb"

This reverts commit 3eeaf79, reversing
changes made to fb69536.

* Revert "Revert "Merge branch 'dev-es6-sb' of github.com:stbaer/pixi.js into dev-es6-sb""

This reverts commit c860228.

* fix RenderTexture, incomplete merge

* fix for text font properties

* reverted some changes

* checked out License, Readme and Contributinf from dev-es6

* editorconfig updated: 2 spaces for .eslintrc

* added eslint rule: spaces around fat arrow

* used eslint fix for consistent spaces around fat arrow

* don't allow scale.x or scale.y to be 0 in displayObject setTransform

* removed jshint comments (again)

Small updates to fix some es6 conversion issues ...

- Removed some require references that were preventing mixins like
interaction from working.
- Fixed Text

Replaces jshint with eslint, using babel in loose mode

Update imports and exports, getters and setters

Disallow the use of `var`

Implementing classes using the new ES6 syntax (#2936) ...

* Migration to ES6 classes

* Migration to ES6 classes

* Migration to ES6 classes

* Migration to ES6 classes

* Using babelify to transpile ES6 code

* Adding babel-preset-es2015 in devDependencies