(refactoring) Rearrange versions.txt : libraries sorted in alphabetic order.
[Flurry] Android SDK for Analytics upgrade 3.3.0 > 4.2.0 .
[Flurry] iOS SDK for Analytics updated 4.3.0 > 5.4.0. Change import path and library filename.
(refactoring) Remove AFNetworking headers.
[Nend] Move Nend headers from include/NendAd.ios to import/Nend .
[Android] Move android-support-v4.jar from Facebook to lib/Android.Java .