twitter4j Library add
.gitgnore更新
Revert ".gitgnore更新"

This reverts commit 36ffdab0f5f97509daa3a0204335eaf036d5cfc6.
PreferenceUtil追加
.gitgnore追加
TwitterClient追加
Merge branch 'master' of https://github.com/satellite-love/android into Twitter_Certification