Bug 910313 - [Clock] Generate DOM from markup source template interpolation, 2

https://bugzilla.mozilla.org/show_bug.cgi?id=910313

- Migrate all existing HTML string creation operations out of application program source and into index.html as value of comment node (see apps/sms/index.html)

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>