Fix Bug 1070704 - Missing entry in the product details should not break the download page
Fix bug 1071278: Update home page and tabzilla promos

* Revert home to the Lightbeam promo, removing Net Neutrality and Web We Want.
* Revert tabzilla to the Firefox OS promo, removing Web We Want
Stopped the redirection: /ja/about/legal -> mozilla.jp
This modification is for Bug 1072170.
Bug 1026184: Fix known-vulnerabilities anchors and add redirects.

* Add flag for clearing the security advisories data.
* Default to stripping '.0' from versions for consistent naming.
Merge pull request #2306 from craigcook/bug-1071278-update-promos

Fix bug 1071278: Update home page and tabzilla promos
Bug 1069545: Add setting to pin OSX downloads.

We have to await approval before offering new versions
of Firefox for download to OSX until the release of Fx 34.

With this we'll have to manually update the settings file when
we get approval, but at least it's in one spot.
Bug 1069545: Add 'osx_is_behind' to firefox/new/ page context.
Merge pull request #2314 from pmclanahan/pin-osx-download-to-specific-version

Bug 1069545: Add setting to pin OSX downloads.
Revert "Bug 1069545: Add setting to pin OSX downloads."
Merge pull request #2315 from mozilla/revert-2314-pin-osx-download-to-specific-version

Revert "Bug 1069545: Add setting to pin OSX downloads."
Merge pull request #2305 from pmclanahan/add-redirects-known-vulnerabilities-1026184

Bug 1026184: Fix known-vulnerabilities anchors and add redirects.
Merge pull request #2302 from kyoshino/bug-1070704-missing-locale

Fix Bug 1070704 - Missing entry in the product details should not break the download page
Merge pull request #2309 from chikoski/stop-redirection-about-legal

Fix Bug 1072170: Stopped the redirection: /ja/about/legal -> mozilla.jp