Merge pull request #595 from glogiotatidis/909369

[bug 909369] Add title attribute to mozillian search result.
Merge pull request #589 from glogiotatidis/907658

907658
[Fix Bug 898026] ask invited users to login
Merge pull request #591 from glogiotatidis/909235

[fix bug 909235] Add 'privileged' privacy level.
Merge pull request #588 from glogiotatidis/908059

908059
Merge pull request #596 from Sancus/handleinvites

[Fix Bug 898026] ask invited users to login
Merge pull request #592 from glogiotatidis/888006

[bug 888006] T-shirt backend code.
Schema migration for PrivacyField.
[fix bug 908236] Add 'title' profile field.