[Cocoapods] Update version to 2.0-beta.2

[Build] Update build script to use iOS 10.1 (Xcode 8.1).

Specify exact PINCache dependency before new one breaks it.

[Cocoapods] ASDK 1.9.91 - Update podspec to specify a specific versio…

…n of PINRemoteImage rather than minimum version.

[ASTextNode] Fix ASTextNode shadow is not rendering (facebookarchive#…

…2042)

* Passing through shadow in renderer attribute

* Fix memory leak setting shadow color

[Cocoapods] Update podspec with 1.9.81

[Cocoapods] Use 1.9.80 instead...

[Build] Tag __unused for variable only needed by an assertion.

[Cocoapods] Update podspec to version 1.9.74.

[Build / Cocoapods] Presumably-final fix to AnimatedGIF project confi…

…guration.