Add error handler when network is off after authorization page is shown.
Add retry button callback when login failed.
Merge branch 'Login' into develop
Add dummy TimeLine fragment.
Make MaidroidPlurk.scala simpler.
Rename Timeline fragment to TimelinePlurks.
Add first batch of plurks in Timeline to TimelinePlurks fragment.
Add callbacks for both success or failure when get plurks.
Add HTML handle for plurk post.
Resize image size.
Fix avatar cache.
Fix Login page.
Make ImageGetter use non-blocking method to retrieve images.
Make small image display larger in HDPI device.
Fetch large plurk images and resize small image density.
Fix login page error.
Implement loading more items in Timeline.
Fix loading image holder is not display correctly.
Using LRUCache to save memory.
Fix OOM issue??