Extract FeedDiscovery#get_feed_for_url to eliminate redundant `rescue` clauses.
Move setting of `feed_url` into `get_feed_for_url`
Remove no-longer-needed local variable.
change link to external rss url in feed listing
StoriesController - Enforce Boolean type on #is_read and #keep_unread

First of all, this prevents that we save user input data into
these two fields.
Second of all, I have refactored the test from "be true" to "eq true"
to prevent making assertions on 'truthful' objects (everything else
other than false and nil)
Merge branch 'pr/138'
move feed external link to next to feed title.
Merge branch 'pr/141'
toggle test case to ensure we aren't always setting attribute to be true
Merge branch 'pr/143'