Fix GA tracking on features/specs tabs. Bug 974154.
[fix bug 977916] Remove corner tab and tabzilla banner follow MWC
Merge pull request #1741 from jpetto/bug-974154-foxos-devices-ga-tracking-fix

Fix GA tracking on features/specs tabs. Bug 974154.
Merge pull request #1742 from alexgibson/bug-958287-remove-mwc-badge

[bug 977916] Remove [MWC 2014] corner tab and tabzilla banner follow MWC