Check for Marketplace update, offer to download it if one is available (bug 1097430)
Merge pull request #823 from diox/update-notification

Check for Marketplace update, offer to download it if one is available (bug 1097430)
Update default feature profile signature (bug 1109814)
don't upload package on package name dev-feed
refresh footer, add media queries (bug 1103235)
refresh settings hover menu (bug 1103224)