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Crash fix: when the app is renamed or moved on disk while running, alert the user and quit the app. This prevents crashes that will happen due to renaming/moving. See Daniel Jalkut on App Movement Monitoring for more info.
Timeline: update UI more quickly when a feed icon is downloaded.
Article pane: stop blocking links containing the string “feedburner” — there are legitimate cases where that string appears.
Timeline and article pane: make sure the link for an article isn’t an empty string.
RSS parser: check for bad permalinks more aggressively. If they don’t contain a / character, then do not consider them permalinks.