Fix bug 1026573 - replace world cup home promo with Firefox desktop

And revert tabzilla back to the Web We Want promo
Merge pull request #2130 from craigcook/bug-1026573-remove-worldcup-promo

Fix bug 1026573 - replace world cup home promo with Firefox desktop
Fix Bug 1016500 - Implement Manifesto redesign
Merge pull request #2102 from kyoshino/bug-1016500-manifesto-redesign

Fix Bug 1016500 - Implement Manifesto redesign
Add ZTE Open II to FxOS devices page. Bug 1031046.

- Improve loading of page with hash.
- Replace curly quotes with straight quotes for inch
  measurements.
Merge pull request #2132 from jpetto/bug-1031046-fxos-devices-zte-open2

Add ZTE Open II to FxOS devices page. Bug 1031046.