Modifying multiselect list height in terms of rows, not pixels

[smontanaro]

I'm not much of a JS/jQuery person, so I may be going about this all wrong, however...

There seems to be no obvious way to set the height of the

widget generated by jquery.multiselect (again, consider that I know little about how all this JS/jQuery stuff works, so am probably missing something everyone else "just knows"). What little I was able to discover from looking at the code suggests that it never attaches units to the height either, so "px" are always assumed. This seems to be a bit of a regression in terms of abstraction. Plain old widgets have a size attribute which is specified in rows. It would be nice if that size attribute was translated to something meaningful by this system. As an alternate, allowing setting of the height with attached units ("em"?) would be better than specifying them in pixels.

[SteveTheTechie]

This will be addressed in my next PR.

[SteveTheTechie]

@mlh758 Implemented by #735. This can be closed.