[MODIFY] some changes about listsCache
Version 0.5.4.3
[MODIFY] some changes in Expander
[FIX] URI malformed error
[ADD] add support for thumbnail of vine, url expanding of engt.co and ift.tt
[MODIFY] add support for thumbnail of m.youtube.com
[FIX] crazy http-get at mouseover
Version 0.5.4.4
[MODIFY] add support for thumbnail of opengraph
[MODIFY] update trends and saved searches by Object.observe
[MODIFY] change user-stream request parameter
[FIX] tweet link disabled issue
Version 0.5.4.5