Unity 5 Compatibility fix

[alaa-eddine]

managed to get it working with Unity 5 :)
Here is the fixed version.

I used #Unity_5 conditional compilation switch so the old code is kept as is for older version.

[mythgarr]

I'm no longer actively maintaining the Spriter2Unity project and haven't done much to keep current on Unity changes in general, but I'm sure many users will appreciate your changes.
I can't verify whether or not your changes work, but it appears that the line
{{BindingFlags bindingFlags}}
shows up twice in AnimationCurveUtils.cs. It looks like this method is public as of Unity 5, so that line is only needed for older versions.

[alaa-eddine]

Sorry for this mistake :)
I fixed it in the last commit

[AlexanderYoshi]

I wanted to verity that his changes work correctly, but that line 192 in AnimationCurveUtils.cs is not needed.

        //Use reflection to get the internal method
        BindingFlags bindingFlags = BindingFlags.Static | BindingFlags.NonPublic;

[alaa-eddine]

The line is needed for Unity < 5.

I'll post another PR

[Dharengo]

Are you sure it is? The line doesn't actually do anything. The variable actually is never used anywhere.

[AlexanderYoshi]

He's correct - the 4.3 version uses it as a parameter.

[alaa-eddine]

just made a PR to fix it :)

[Dharengo]

Then why isn't it in side a directive?

[Dharengo]

Ah I've seen your fix. I've tried to merge your fork into mine but apparently I ran into some kind of conflict. Idk how to resolve conflicts so I just changed my fork manually.