CanvasPrepare updated to simulate WebGLPrepare (#2959) ...

* For WebGLPrepare- the done callback is now optional
For CanvasPrepare - an implimentation has been added rathar than it just being a stub. Uploading textures to the GPU can be simulated by forcing a draw command onto a hidden using these textures.

* Fixed couple of context issues

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

Better SVG support (#2614) ...

* Better SVG support

* Images are loaded using canvas which enables pre-scaled textures
* Scaling is done by providing an extra parameter `sourceScale` to the `fromImage` method
* Size of the original SVG source is checked with an extra XHR (necessary step for the canvas API to work)
* Supports data URI based SVG

* Fixed brace-style.

* Added util tests.

* Rebased to latest dev. Added 'px' support.

Merge pull request #3000 from stbaer/dev-pr ...

fixes autoDetectRenderer in core/index.js

small jsdoc fix - added some missing (#3008)

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

Merge pull request #3003 from stbaer/dev-graphics-linestyle ...

graphics lineStyle default args and jsdoc

jsdoc

graphics lineStyle default args and jsdoc

add some missed doc changed from #2954

fixes autoDetectRenderer in core/index.js

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

bounds and transform for invisible containers.

Manually merge #2925

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

Fixes mouseover behaviour

Manually merge #2929

Fixes mouseover behaviour

small fixes in the documentation

small fixes in the documentation

Manually merge #2970

Update documentation for TextStyle.padding ...

The change has been made here: https://github.com/pixijs/pixi.js/commit/52d86a2bae9631142d4635e8421d2761023cbcbc

filter pad fix

fast rect fix

added inline play

added rectangle bound checks

Merge branch 'dev' into dev-es6 ...

# Conflicts:
#	src/accessibility/AccessibilityManager.js
#	src/core/text/Text.js

Merge pull request #2946 from themoonrat/cocoon-fixes ...

Fixes for PIXI + Cocoon

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)

Fixed Ticker's internal _tick method

Fixes lint error