Add skel of 'Twitter Share'
Fix design
Allow free text
Remove unnecessary console.log
Improve UI
[sync] 1.2.0
Allow blank text for tweet
Separate Modal code
Fix UI for tweet (I don't care any bug)
Text length feedback [雑]
[sync] 1.2.1
Merge pull request #387 from otiai10/develop

[sync master] 1.2.1