[bug 1081917] Fix Thunderbird RNA Apache redirects.

* Fix redirects to web-archive
* Fix redirect to /b/releases/$
Merge pull request #2499 from glogiotatidis/thunderbird-rna

[bug 1081917] Fix Thunderbird RNA Apache redirects.
Redirect /ja/contribute/: fix bug 1091977
Bug 1086950 - donate home page promo

Bug 1094494 - donate link in top nav