v2.1.0

• Added setFullLayerBounds util method.
• Fixed a bug that initializtion default z-index of SVG layer.

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• 新增setfullayerbounds辅助方法。
• 修复初始化SVG图层默认z-index错误。

v2.0.0

• Refactor all code completely

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• 彻底重构所有代码

v1.0.0

Merge branch 'master' of github.com:iDerekLi/Leaflet.CustomLayer