* popover memory leak fix

* actual fix

* collapse-transition: fix strange transition behaviour in safari

* 为你库兼容ie9

* move collapse-transition from tree to src/common

Select: fix disabled multiple filterable bug, add missing scrollbar s…

Table: fix sortable, allows cancellation sort

Select: update style if initially invisible

MessageBox: add default customClass, fixed #2438

InputNumber: prevent cursor from moving to head when pressing up on c…

support collapse value type(fix #2452)

This reverts commit ef06717f.

update i18n docs

Changelog: update for 1.1.4