Rethink the issue and MR sidebar
Right now the issue and MR sidebar need a scrollbar to scroll. But scrollbar hiding support is poor in Firefox and IE.
We wind up using a jquery library nicescroll which isn't really native and it kind of stinks. It stinks a lot. Lot's of dom updates and argh.
If we use natural scrollbars and try to restyle them it isn't supported in firefox and on windows it looks not very good.
I think we need to rethink the UX here because everything in the UX should be able to be supported natively. Without hacky plugins.