rewrite using Class, add registerEasing method

[JordanDelcros]

Rewrite using the Class way, add « resisterEasing » method.
Update readme and examples.

[noerw]

looks great, but when trying to migrate from spite's version to yours i'm getting stuck with the error
line 34: TypeError: story[key][step].match(...) is null aka Uncaught TypeError: Cannot read property '0' of null when initializing a new Storyline().

The old storyline data syntax is still supported, right?

Edit: Could it be that negative time indexes are not supported anymore?

[JordanDelcros]

Can you give me the datas you are using ? :)
I never tried negative times... Is it very usefull ?
There is many differences with the Spite's version.
Your error probably come from the easing names...

Example: "easeinout" become "easeInOut".

Give me more datas, I'll help you. ;)

[noerw]

I'm currently only using the 'cut to' easing.
Here's my example sequence. I use negative indexes, as those are actually geographic coordinates in my application, and not time.
I could translate them into the positive number range, but with spite's version it worked with negative indexes too.
Would be great to get that running ;)

[JordanDelcros]

Is it working with this fix ?

[noerw]

yep, now it works. thanks!
When creating a storyline the data is stored in a variable storyboard, you might want to change that to storyline, as it's a bit confusing..
Could you create the issues section in your fork repo, so such discussion can be continued there?

[JordanDelcros]

Yep