Bug 847975 - [MMS][SMS] remove use of dtf and _ aliases from SMS. r=julienw

- Bug 847975 - [MMS][SMS] remove use of "dtf" and "_" aliases from SMS
- Moves "no-messages" and "no-results-returned" markup to index.html as static HTML
- Uses "hide" class for "non" messages, instead of rebuilding and localizing everytime they are displayed.

See new bugs:

- https://bugzilla.mozilla.org/show_bug.cgi?id=854413
- https://bugzilla.mozilla.org/show_bug.cgi?id=854417
- https://bugzilla.mozilla.org/show_bug.cgi?id=854494

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