Merge branch 'master' of https://github.com/libgdx/libgdx
Merge branch 'master' of https://github.com/libgdx/libgdx
Merge branch 'master' of https://github.com/libgdx/libgdx
Merge branch 'master' of https://github.com/libgdx/libgdx
Merge branch 'master' of https://github.com/libgdx/libgdx
Proposal: platform-independent IAP design (low-level)
Merge branch 'master' of https://github.com/libgdx/libgdx
Update for IAP functionality:
(1) observer renamed to listener
(2) made PurchasedItem a class (no need for interface)
(3) added PurchaseValidator: template for post back validation of purchased items on server
Merge branch 'master' of https://github.com/libgdx/libgdx
Merge branch 'master' of https://github.com/libgdx/libgdx
Hide compiled obj files in git
Changed BulletTest to BulletTestCollection and added ConstraintsTest
Added no-arg constructor for Circle.

See http://www.badlogicgames.com/forum/viewtopic.php?f=11&t=6043
Add some color to better distinct the objects
Add MeshShapeTest.
Cleanup a bit
getRotation for livewallpaper

But it's little bit buggy, don't know why.
If you place your device to 0 degrees position (portraite orientation) 
and rotate to 180 degrees, nothing be detected, or from 90 to 270 and 
versa. But if you rotate your device from 0 to 90 or 270, or from 90 
to 180 and 0 and so on - all is fine (different orientations).
Remove unnecessary staff
Merge pull request #107 from xoppa/bullet

Changed BulletTest to BulletTestCollection, added colors, ConstraintsTest and MeshShapeTest
Merge pull request #108 from semtiko/patch-1

getRotation for livewallpaper