Update ZTE Open C on FxOS devices page. Bug 1010596.
[bug 1010596] Add eBay logo for ZTE Open C devices
[fix bug 1009892] Prepare /whatsnew to be displayed for updates from pre-29 versions
Merge pull request #2029 from mozilla/bug-1009892-display-whatsnew-tour-for-pre-29-versions

[fix bug 1009892] Prepare /whatsnew to be displayed for updates from pre-29 versions
Merge pull request #2024 from mozilla/bug-1010596-fxos-devices-zte-openc

Bug 1010596 fxos devices zte openc