- Fixed DiatePicker not refresh year when switched in month picker, #1070
- Added $loading service
- Added `manual` trigger in Popover
- Added props: `nodeKey``emptyText``checkStrictly``defaultExpandAll``autoExpandParent``defaultCheckedKeys``defaultExpandedKeys` and method: `setCheckedNodes` for Tree
- Added props: `nodeKey`, `emptyText`, `checkStrictly`, `defaultExpandAll`, `autoExpandParent`, `defaultCheckedKeys`,`defaultExpandedKeys` and method: `setCheckedNodes` for Tree