[MODIFY] default japanese font is changed to Noto Sans Japanese
Revert "Revert "[REMOVE] twitpic support is removed""

This reverts commit 01f1529ad6717511e627b8d383a8439b7cea4d7a.

Twitpic support is permanently gone.
[FIX] handleLink on expanded tweets
[MODIFY] replace new url expander
Version 0.5.4.6