Results 5 issues of RoCry

This PR trying to fix the issue we met, which exact same with https://github.com/gin-gonic/gin/issues/2778 If you guys have better idea to fix this, just let me know.

bug

https://github.com/linkedin/LayoutKit/blob/master/LayoutKit/Views/ReloadableViewLayoutAdapter.swift#L91-L93 Say I have a table view with 1000 items, then I insert 1 item in it, it will regenerate the whole arrangement... Could we just replace the updated items?

enhancement

In production code the helpers may returns error, we could returns the underlying error from helper when `render_template`. Below are some pseudo-code: ```rust fn query_name_by_id(id: &str) -> Result { ......

question

Some rss like `https://www.coindesk.com/arc/outboundfeeds/rss/?outputType=xml` will have multi links in single item. So we could improve parse it by just keep the first valid link. Let me know if you guys...

Before segue, the sourceViewController have a navigationBar, but while the segue the navigation missed.