Show story list loading indicator only if stories are being fetched, not just if they are queued. (read: don't spin if offline) (#590)
Cleaner service shutdown. (#591)
Explicity synchro DB writes. (#591)
Synchronise DB upgrades with other DB actions. (#591)
Don't re-fetch already cached images.
Allowing guids to change if the permalink doesn't.
Adding screenshots for iphone 6 and 6+.
Merge pull request #593 from dosiecki/master

Android: Bugfixes
Fixing URL munging when the url includes a non key=value pair in the query string. Ex: https://cns.utoronto.ca/~cks/space/blog/?atom. Thanks to @firesock for finding this.