Fix bug 1088535 - restore deleted communities

And add some new info
Avoid django DST error: bug 1092647

Use tz-aware datetime in query to avoid automatic conversion by
django.utils.timezone.make_aware, which will throw an error during DST
change, because Zen. https://code.djangoproject.com/ticket/22598
Merge pull request #2438 from jgmize/future-dst

Avoid django DST error: bug 1092647
[fix bug 1092851] Firefox OS: Wrong link to Czech T-Mobile shop
Merge pull request #2439 from alexgibson/bug-1092851-firefox-os-wrong-link-czech

[fix bug 1092851] Firefox OS: Wrong link to Czech T-Mobile shop
Add content for /firefox/tiles page
Bug 1059518
Merge pull request #2413 from sgarrity/bug-1059518-tiles

Add content for /firefox/tiles page
Bug 1092706 - Fix non localized strings in /contribute/signup
Merge pull request #2440 from flodolo/bug1092706

Bug 1092706 - Fix non localized strings in /contribute/signup
Merge pull request #2432 from craigcook/bug-1088535-restore-deleted-communities

Fix bug 1088535 - restore deleted communities
Bug 1087053: Refresh MozID data
Merge pull request #2436 from ckprice/bug-1087053-tableau-mozid-export-temp-solution

Bug 1087053: Refresh MozID data
Fix bug 1059518 - remove repeated copy
Merge pull request #2443 from craigcook/bug-1059518-tiles-content

Fix bug 1059518 - remove repeated copy
 Update install.rst to list Linux packages

I just tried to get Bedrock going and found I was missing some packages. It would help to list them in the docs.