Update code climate and waffle links in readme.
Lots of rakefile update goodness
Don't show the alert message to the user if they specify a refresh time under 60 seconds. Silently change it.
Don't refresh more than once if the check interval is set to 0
Don't display the last time the app updated itself.
Make the fetch method private.
Few refresh-related updates to the app delegate.
Nil out the timer to make sure that the icon doesn't constantly animate.