Bug 925278 : use bedrock channel page instead of php one

* Add a bedrock redirect for firefox/channel
* include first locales ready: de, he
Merge pull request #1301 from pascalchevrel/Bug-925278_Make_firefox-channel_localizable

Bug 925278 : use bedrock channel page instead of php one
fix bug 923976 repair broken link
Merge pull request #1302 from shansm/broken-link-branch

fix bug 923976 repair broken link
redirect plugincheck/more_info.html to plugincheck
Bug 925551
Fix bug 925931: Enable new home page for all locales.
Merge pull request #1304 from pmclanahan/remove-homepage-test

Fix bug 925931: Enable new home page for all locales.
Bug 925995 - Horizontal scrolling on the new channels page on RTL

Fix is in menu.css so will apply to all pages using the Firefox menu
Merge pull request #1305 from pascalchevrel/Bug-925995_Horizontal_scrolling_channel_page_RTL

Bug 925995 - Horizontal scrolling on the new channels page on RTL
fix bug 768636 move span tag inside of block site_header_nav
Add de/congstar CTA for firefox/os/. Bug 917334.
Bug 925931 - Restore secondary home page templates

Continuing the 80/10/10 split while we work on some further design options before going 100% with the new home page.
Merge pull request #1308 from craigcook/bug-925931-restore-homepage

Bug 925931 - Restore secondary home page templates
Merge pull request #23 from mozilla/bug-917334-update-cta-fxos-de

Bug 917334 update cta fxos de
Bug 926844 - fix strings not in l10n calls in base.html template
Merge pull request #1309 from pascalchevrel/bug-926844_base_template_l10nify

Bug 926844 - fix strings not in l10n calls in base.html template
Merge pull request #1281 from shansm/headerfix-branch

fix bug 768636 move span.toggle outside of nav element
firefox/channel page: activate es-MX, sl, fr
Merge pull request #1310 from pascalchevrel/l10n-activate-firefoxchannel-page

firefox/channel page: activate es-MX, sl, fr
Bug 926844 : enclose Mobile string in l10n call