other / mew-iview

Select related fixes

fixed in multiple type, when select some options, the position of popper not recalculation, so the position is wrong. By the way, it resolve the problem: when select one option, scroll page, throw many errors of popper.

fix #1990

Use constant component names in Pascal Case as per vue standards

Composed string that can be used within iview and by users of the library.

解决select-item引起的大量内存泄漏的bug