Updated with global requirements

* Move to the latest pbr, remove d2to1
* Move to the latest hacking, remove flake and pep8

Closes bug 1212325

Change-Id: I4384a0470a5ab2297d62d249d08bd78d515c25c2
Added reddwarf to list of robots

Also added Sergey Scripnick to default data

Closes bug 1213367

Change-Id: If3a5df2eaceb95045e49228bcc22ef19d8478c45
Users are kept in runtime storage during update cycle

* Users are persisted by user_id and accessed from web font directly
* Web app initializing section is refactored
* 404 error handler is made more looking like error

Closes bug 1213841

Change-Id: Ie6ff57505dcc14291cd3267a7448cddb2b478eb2
Poll open reviews by chunks instead of one by one

Closes bug 1213358

Change-Id: Ibcf0e3a2d48e249af68e7d2d1ac27b6507510e47
Add *egg to gitignore

Change-Id: Iaf6eebea288aa265cce0348de2cce6ea65902318