Carousel: stop timer before component destroyed (#13820)

* Table: fix empty text vertical alignment issue on IE10+

* Table: add a comment to IE-specific fixes

* Fix issue with popover displaying on focus when configuration is for it to show on hover.
Fix issue with popover timer still running when button clicked and parent element no longer visible (e.g. keepalive component).

* Updated to pass tests

* Correct documentation for el-date-picker

* Changes as per ziyoung review

Allows `children` and `disabled` to be undefined

* input: simplify internal implementation

remove currentValue, strictly follow one-way data flow
hack for MSIE input event when placeholder is set
remove isKorean hack (#11665, #10648)

* input-number: fix for new el-input

* test: input, fix vue warning

* date-time-range: fix for new el-input

* pagination: fix for new el-input, simplify internals

* input: fix input event on compositionend

* input-number: fix for new el-input

* input-number: nuke userInput on change

* fixed typo

* fixed typo

* Update spanish doc 2.4.10

* update changelog

* Transfer: fix bug sometimes component crash when target order is push(#13320)

* update code

* Autocomplete: add clearable prop

* Input: remove focus after clearing the value

* Autocomplete: hide options after clearing the value

* add: text status in progress circle component

* Progress: update Chinse and Spanish docs and minor improvements

* update progress

* fix: 12383 Tree in lazy mode set child node 'default-checked-keys', display wrong：All nodes are fulfilled

* 添加测试

* fix code style

* update style

* date-table: simplify implementation, fix #12980

* date-table: remove rangeState's row and column

* date-table: fix disabled cell highlight

this is a regression introduced in pr #8156, which allows disabled date to be
highlighted.

Also simplifies handleClick's implementation to avoid DOM operations.