• [PERFORMANCE] Only recalculate the camera's view matrix when it has actually changed.
• [PERFORMANCE] Remove try/catch from script calls (release/profile builds only).
• [PERFORMANCE] Batcher updateMatrices args consistent with pc.SkinInstance.
• [IMPROVEMENT] Add -m option to build.js to allow source mapped output (release builds only).
• [FIX] Add an error event when an XHR status is 0 in pc.Http#request.
• [FIX] Remove reference counting for pc.Shaders.
• [FIX] Fix pc.ParticleSystemComponent#animNumFrames, particle culling and orientation.