Avoid unnecessary memory allocation
Merge pull request #1942 from obigu/feature

Avoid unnecessary memory allocation on ImmediateModeRenderer20 end() call
Draft for libGDX Pay API.
fixed issue #1945, canWrite is not supported in Android API 8, using reflection now
fixed issue #1920, animation frame duration is dynamic now
fixed issue #1916, added Vector#setZero
Update CHANGES
Purchase object improved to accept both an integer or String in the constructor for the item identifier.
made `findActor` in Group return typed actor
Merge pull request #1948 from vlaaad/generify_find_actor

Make findActor method in Group return typed actor
fixed SharedLibraryLoader, was invoking canWrite instead of canExecute
Merge pull request #1929 from davebaol/aida

A new extension for AI with FSM and message handling
integrated gdx-ai into build, made it GWT compatible
Merge branch 'master' of https://github.com/noblemaster/libgdx into iap
added gdx-pay to build
Merge branch 'master' of https://github.com/libgdx/libgdx
Merge branch 'iap' of https://github.com/libgdx/libgdx
Pay API:
 - removed PurchaseObserver - there is now only 1 single listener: PurchaseListener
 - itentifier changed to String (from int).
Merge branch 'iap' of https://github.com/libgdx/libgdx
Added payment processor stubs for Google Wallet/GWT and Stripe/Desktop.