Bug 766606 - [mozilla.org] Firefox download button doesn't block new unsupported operating systems

* Copied the old platform detection code from download.js
* Added Windows 2000 (NT 5.0 and 5.0.1) detection
* Added Windows XP SP1 detection
Bug 892470 - enable plugincheck for ml, ro
Bug 791681 - Insecure transition from HTTP to HTTPS in form post
[bug 898024 898025] enable get phone cta for Venezuela and Columbia
Bug 897206 - Update en-US newsletter success message for new double opt-in process

When someone signs up for a newsletter in English, change the message
on the success page to say they'll have to confirm, just like any
other language.
Merge pull request #1118 from dpoirier/bug-897206-signup-success-message

Bug 897206 - Update en-US newsletter success message
Bug 799273 - [ro] Get Involved page, fix responsive design all locales

* Add email address
* Add 'ro' to LOCALES_WITH_MOZ15
* Add localized banner + css rule
* Fix CSS for slides 2 and 6
* Fix all localized rules (added .on class to be active only on the slideshow)
[fix bug 896961] Add base JS unit tests for bedrock global.js
Merge pull request #1107 from alexgibson/add-js-unit-tests-for-global-js

[fix bug 896961] Add base JS unit tests for bedrock global.js
Merge pull request #928 from kyoshino/bug-791681-form-https

Bug 791681 - Insecure transition from HTTP to HTTPS in form post
Bug 897195: Port /newsletter/confirm to Bedrock
Include protocol in video sources for Chrome.

Uses location.protocol so code doesn't need to be updated if/when mozilla.org switches to HTTPS. See Bug 900171.
Merge pull request #1117 from alexgibson/enable-get-phone-cta-co-ve-firefox-os

[bug 898024 898025] enable get phone cta for Venezuela and Columbia
Merge pull request #1124 from gauthierm/bug-900171-videojs-chrome

Include protocol in video sources for Chrome.
Merge pull request #1103 from dpoirier/bug-897195-port-confirm

Bug 897195: Port /newsletter/confirm to Bedrock
Merge pull request #1112 from flodolo/bug799273_ro

Bug 799273 - Get Involved [ro], fix responsive design
Merge pull request #1109 from flodolo/bug892470_mlro

Bug 892470 - enable plugincheck for ml, ro
Fix bug 898447 - link to news post about Telefonica/Colombia/Venezuela
Merge pull request #1128 from craigcook/bug-898447-update-homepage-news

Fix bug 898447 - link to news post about Telefonica/Colombia/Venezuela
Bug 900493 update home page redirect to allow its localization