When the selected week spans across two years (e.g. 2018-12-30 2019-01-05),
they should be highlighted in both month tables.

fix regression introduced in pr #13266, where popper arrow is hidden

Pagination: input max value won't be less than 1 (#13727)

Upload: add url prop to upload file when list-type changed (#13771)

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