Fixed bug where EffectParameter data was shared among cloned effects.
Removed EffectPass.Initialize() which was unused and not XNA.
Merge pull request #1542 from SickheadGames/effectfix

Fixed EffectParameter Bug
Fix for delete BufferRender.  Should only be GLES and not OpenGL.
Merge pull request #1545 from kjpou1/develop

Fix for delete BufferRender.  Should only be GLES and not OpenGL.
Fixed the Matrix.CreateBillboard function so that both overloads work.
Switched overloads for efficiency.
Merge pull request #1546 from AdamDawes/FixForMatrixCreateBillboard

Fixed the Matrix.CreateBillboard function so that both overloads work.
Merge remote-tracking branch 'remotes/upstream/develop' into develop3d