[BUGFIX beta] Close #3502 – Fix issue with templateName in Route and render.
Merge pull request #3727 from abuiles/fix_render_template_in_route

[BUGFIX beta] Close #3502 – Fix issue with templateName in Route and render.
[BUGFIX beta] [fixes #3714] PromiseProxy should merely observe promises.

Uncaught exceptions should likely still propogate.