Improve timeline filtering behavior.

Remove status which does not satisfy filter predicate.
Improve input experience.

Improve auto-stashing behavior.
Fix a bug of attaching image selection.
Fix initializing favorited/retweeted status.
Improve behavior around threading.
Implement LazyImage resolver
Handling event improved.

updating status data is more efficient.
Merge branch 'master' of git://github.com/karno/StarryEyes.git