Minor stylistic changes to the clock example.
Remove bad helper

We made it accessible because of a recent
change to lookup order in template inclusions
that also have helpers.
Merge branch 'shark' into shark-newargs
Simplify account-ui-viewer due to new template argument paradigm
On {{> foo}}, look for template before global helpers.

Motivated by our safe-guard to print an error when
using the old style {{loginButtons}}. And it seems
just as correct.