Issue #51: make sure API key is lowercase.
Refactored check_url/fetch_feed code.
Issue #52: set Peewee and Requests log level to CRITICAL if app log level isn't DEBUG.
Removed unused import.
Removed note about untested PostgreSQL support.
remove transaction around OPML import

This removes indentation, but no code changed.

The transaction isn't necessary; aborting an import will not lead to inconsistent data.
enable autorollback for postgres

This fixes #54 but pretty much prevents us from using explicit transactions.
Merge pull request #56 from tewe/master

Fix for #54
Use V key to view original website entry.
Merge branch 'issue6' into 0.9.2-wip
#53: draft implementation of plugin system.
#53: moved code for plugin loader out of __init__ to avoid weird behavior after an ImportError. Changed/removed event names.
#53: fixed NameError in scrubber plugin. Added fetch_done(feeds) event.
log -> logger.
In feed list use a yellow background when a feed is about to be disabled.
Upgraded to Bourbon 4.0.1.
#58: updated requirements file.
#59: added mark feed as read.
Made 'Visit website' more visible.
Sass now outputs compressed stylesheets.