Fix 404 for blurblogs if photo_url is None

Fixes the following:
[...]
<link rel="shortcut icon" href="None">
<link rel="icon" href="None">
[...]

-> Failed to load resource: the server responded with a status of 404 (NOT FOUND) http://menakite.newsblur.com/None

Note: not tested - I actually can't test it.
email was made a required field in ed9cd5e
Vendorizing psutil.
DB migration.
Updating postgres backup.
Adding psutil dependency back in.
Setup debs first, then just grab the right psql client.
Prettifying premium-only notifier in river.
Prettifying premium-only notifier in river.
Fix a minor typo in NBNotifier.h: "with" only has one 'h', not two

The implementation *implemented* the correct name, but it was never defined. This fixes that typo.
Adding new widnows phone clients to logs.
Feed reader bg in user client list.
Adding mark_story_as_unstarred to the API documentation
Partially fix #295 - add confirmation when marking folder or all stories read with options to mark all read or cancel
Optimizing feed loads even fruther by checking for training.
Major optimization to both single feed loads and river loads. Both are now checking training only for trained feeds, and river makes only a single subscirption call instead of N subscription calls.
Fixing bug for last page of All Site Stories.
Fixing bug in optimized feed river.
Merge pull request #327 from manderson23/master

Android: Confirmation when marking folder or all stories read
Banning Feed Reader Background app, as it's causing a ton of bogus requests.