1.2.0 preview
改进了undo/redo的交互方式
Merge remote-tracking branch 'origin/dev' into dev
optimize the button
改进了undo/redo的交互方式
add fresh skins
添加几个皮肤
非常清晰的脑图
Merge branch 'dev' into ui-for-1.2.0
添加粘贴剪贴节点功能
修复孤立node节点容错
finish 1.2 ui
Merge branch 'dev' of github.com:fex-team/kityminder into dev
fix background export issue
bug fix