no handler accepted error is thrown when a template is not found

[osa1]

When a template is not found, "no handler accepted" message is printed. This message is misleading and I was wondering if that could be easily improved to something more useful like "template is not found: ".

[mightybyte]

Because of the way routing works in snap-core, we can't have a better error message here. There's no way for snap to generically know that you were looking for a template. If you want a better message, you'll have to set up your own messages on a per-app basis.