divider in dockable keeps relative position when parent block is resized
divider in dockable keeps relative position when parent block is resized

JakubLukas/LumixEngine,gamedevforks/LumixEngine,zhouxh1023/LumixEngine,dreamsxin/LuxEngine,galek/LumixEngine,JakubLukas/LumixEngine,dreamsxin/LuxEngine,gamedevforks/LumixEngine,JakubLukas/LumixEngine,galek/LumixEngine,zhouxh1023/LumixEngine