added yellow star for favorites
added star_yellow.png to project
added reply, retweet, and favorite buttons
removed initial yellow star icon and added official twitter icons
added new icons to project
set "include_my_retweet" param on statuses/home_timeline.json request so that we have access to the retweet ID
added API for retweeting, unretweeting, favoriting, and unfavoriting
added Tweet properties for IDs, and retweet and favorite
set internal variable in setTweet, and use self.tweet afterwards
added missing 'd' for tweets that are labeled days old
setup retweet and favorite buttons