Merge pull request mdn#475 from darkwing/tags-spaces-776978

fix bug 776978 - Quote all tags to avoid space issues

Merge pull request mdn#457 from groovecoder/migrate-demos-773480

bug 773480 - only replace tagged items records; not tags

fix bug 777837: Separate apps landing page from waffle switch for app…

…s promo on home page

fix settings_local MIDDLEWARE for statsd

Merge pull request mdn#451 from darkwing/link-fix-777218

fix bug 777218 - Detecting link with missing leading slash

bug 759356 - restore MT url paths to fix devmo_url

Merge pull request mdn#294 from groovecoder/trailing-slash-766313

Trailing slash 766313

Merge pull request mdn#291 from groovecoder/trailing-slash-766313

Trailing slash 766313

Merge pull request mdn#233 from darkwing/querystring-next-enhancement

Cleaning up the 'next' parameter in AJAX call to prevent empty next

Merge pull request mdn#220 from nickolay/757202-table-of-contents

Bug 757202: miscellaneous Table of Contents fixes