V0.31.7 Released

Bug修改

• 解决fusion.gl对WebGL 1的一个不兼容bug
• 通过减少不必要的Object.defineProperty提升uniform取值性能
• 通过减少uniformMatrix4fv，提升uniform更新性能
• 解决更新mask defines可能的null pointer异常

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Bug fixes

• Fix an incompatibility bug in fusion.gl with WebGL 1.
• Improve uniform fetching performance by reducing unnecessary Object.defineProperty.
• Improve uniform update performance by reducing uniformMatrix4fv.
• Resolve a possible null pointer exception for updating mask defines.