Merge pull request #11 from takatama/popup_oauth

Apply display requirements and modify oauth APIs
Update README.md
Apply display requirements (link to t.co)

Each Url in tweet text is linked to the t.co url.
Apply display requirements to search result dialog

Apply display requirements to search result dialog
Modify multibyte keyword search

Modify the number of encoding application from twice to only once.
Merge branch 'spike' of https://github.com/takatama/crowy into spike