Fix the mistake of xcode project
Add contribution guidelines
Fix path for some playhaven source files in Xcode
Merge pull request #739 from theGoodEvil/fix-playhaven-pathes

Fix iOS build
Add clause about merging master into development
Merge pull request #738 from theGoodEvil/contributing

Contribution Guidelines
Merge branch 'development'
fix MOAIParticleForce attractor bug (applies random force if particle is out of attraction radius)
fix text box not displaying some characters (thai and other specific)
Add test case textbox-thai
Add test case particle-default-force
Merge pull request #746 from Vavius/fix-MOAITextDesigner

fix text box not displaying some characters
Merge pull request #745 from Vavius/fix-MOAIParticleForce

fix MOAIParticleForce attractor bug
Fix MOAITimer.EVENT_STOP

The new MOAINode::EVENT_UPDATE (enum value 0) collided with
MOAIAction::EVENT_STOP (also enum value 0) in MOAITimer, which
is derived from both Node and Action. As a result, EVENT_STOP
was triggered every frame. Fixed by starting MOAIAction events
at MOAINode::TOTAL_EVENTS, similar to MOAITimer events starting
at MOAIAction::TOTAL_EVENTS.
Merge pull request #750 from theGoodEvil/fix_timer_event_stop

Fix MOAITimer.EVENT_STOP
Fix compilation of some iOS extensions

These extensions weren't updated when MOAILuaStateHandle
was renamed to MOAIScopedLuaState in changeset
39eba52567b652f9af7f962743d5fd8bee037ce9.
Merge pull request #754 from theGoodEvil/fix_ios_extensions

Fix Compilation of some iOS Extensions
Enable PVR support on iOS

MOAI_TEST_PVR was defined in a place where the actual PVR
code could not see it. Since it was just an alias for
MOAI_OS_IPHONE, I replaced it with that.
Fix PVR support by using zgl abstraction layer
Remove unnessecary casts