Fix Bug 1102198, always show unknown plugins. Use subdued style
Bug 1008653 - History page: fix slide 10 for bg
Merge pull request #2530 from flodolo/history_bg

Bug 1008653 - History page: fix slide 10 for bg
Merge pull request #2524 from ossreleasefeed/bug1102198-always-show-outdated-plugins

Fix Bug 1102198, always show unknown plugins. Use subdued style
Remove Fx10 homepage overlay. Bug 1099277.
Merge pull request #2535 from jpetto/bug-1099277-remove-fx10-homepage-overlay

Remove Fx10 homepage overlay. Bug 1099277.
Fix bug 1052088 - Gear store home and tabzilla promos