keep track of feeds that are failing, and don't poll them so often

requirements.txt

@@ -1,32 +1,24 @@
-Flask==0.10.1
 Flask-DebugToolbar==0.10.0
 Flask-Login==0.2.11
 Flask-Micropub==0.2.2
 Flask-SQLAlchemy==2.0
-
+Flask==0.10.1
 Jinja2==2.7.3
 MarkupSafe==0.23
 SQLAlchemy==1.0.0
 Werkzeug==0.10.4
-
 asyncio-redis==0.13.4
 beautifulsoup4==4.3.2
 bleach==1.4.1
-
 feedparser>=5.2.0
 html5lib==0.99999
-
 mf2py==0.2.7
 mf2util==0.2.3
 psycopg2==2.6
-
 pyOpenSSL==0.15.1
 pyasn1==0.1.7
-
 redis==2.10.3
 requests==2.7.0
-
 rq==0.5.2
-
 uWSGI==2.0.10
 websockets==2.4