hugh/select2: Select2 is a jQuery based replacement for select boxes. It supports searching, remote data sets, and infinite scrolling of results. fork from : https://github.com/select2/select2.git @ 4.0.11

Kevin Brown 2c5467b38c Fixes error when getting offset of element not in document		vor 5 Jahren
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js	2c5467b38c Fixes error when getting offset of element not in document	vor 5 Jahren
scss	f13ba12bea allowClear no longer shifts selections to a new line (#5603)	vor 5 Jahren