Bug 873287 - 404 on manifesto links

Change to bedrock links.
Bug 859572: Redirect inactive Tabzilla locales to CDN.
Merge pull request #885 from pmclanahan/tabzilla-more-redirect-cdn
fix bug 873614 age checkbox ambassadors form
Merge pull request #889 from alexgibson/age-checkbox-student-ambassador-bug-873614
Merge pull request #881 from chrismore/patch-1

Bug 873287 - 404 on manifesto links
[Fix Bug 748503] Rewrite for Nightly Redesign