Move the path of spec
Move an initialize routine in the spec
Add FakeWeb.clean_registry for right use of FakeWeb
Add Reader#check
Add a spec of Reader#check
Reduce a duplicate
Add an utility method: feed
Add a routine into Reader#check to determine whether that rss is chaged or not
Fix a poor statement
Merge branch 'master' of https://github.com/ermaker/pavlov_rss