[bug 924655]  Add a facebook field on the user profile for MDN

Fixed the errors
Wire up URLs for page deletion, restoration and purgation.
Exclude redirect pages from l10n dashboard
fix and add tests
Merge pull request #1486 from ubernostrum/deletion-urls

Wire up URLs for page deletion, restoration and purgation.
Merge pull request #1482 from groovecoder/profile-facebook-field-924655

[bug 924655]  Add a facebook field on the user profile for MDN
Merge pull request #1492 from Elchi3/redirects-l10ndash

Exclude redirect pages from l10n dashboard
Add Facebook icon for profile pages
Merge pull request #1494 from darkwing/facebook-icon-profile

Add Facebook icon for profile pages