<@U25U0KPFT> I added a test and fixed a bug in Lis...

# tornadofx

[edvin]

@carlw I added a test and fixed a bug in ListView.cellCache so do a another pull before you try it. If you use this feature and are ready to submit your app before the next release I'm sure we can relase 1.5.7 by then anyways 🙂