FR: Implement ability to not crash horribly with ART runtime

[brett19]

When attempting to sign into play services using the standard Social.localUser.Authenticate call while ART is the active runtime, the app shuts down with an error about JNI_GetArrayLength. Will provide additional details below shortly.

[brett19]

https://gist.github.com/brett19/a9717d21ddd2c10b13ea

[btco]

The plugin does not officially support ART yet; but I'm tagging this as a feature request.

[felschr]

I have the same issue. First I thought my application ID or fingerpribt would be incorrect but I couldn't see an error message for that.
ART support would be really great!

[Ezee]

ART support would be nice because there's a lot of 'artholes' out there. I'm getting one star reviews with a reason 'ART is not supported' and explaining that ART is simply experimental runtime isn't working.

[MSFX]

Still having issues with this as well :/ :(

[acceleroto]

I'm a big fan of this FR. Lots of my players are complaining about lack of ART support. Thanks!

[lalmanzar]

So... Lollipop is almost here, and still no support for ART. Please add support. Thanks!

[wfowler1]

Yeah, this is going to be a pretty serious problem soon and it will only get worse until this is addressed.

[wfowler1]

Actually, now that I test it again, I'm not having any trouble with crashing while using ART on my Galaxy S5... Are you sure you aren't having some other issue?

[seandanger]

I only have one device that can run Android L as of yet, but I installed the 5.0 (LRX21P) public release, and the crash no longer occurs as it did on Android 4.4.4. Achievements, Leaderboards, and Cloud Saving seem to work fine too. Huzzah!

[mrggl]

This was an issue with older versions of ART that was resolved in the public release.