made several translations

I'll paste my changes:
"Archive" = "アーカイブ";
"Unarchive" = "アーカイブから復元";
"Archive activity type?" = "ログ種類をアーカイブ?";
"Unarchive activity type?" = "ログ種類をアーカイブから復元?";

// Goals
"Goals" = "目標";
"Create goal" = "目標を立てる";
"Edit goal" = "目標を編集";
"Goal type" = "目標の種類";
"Alert" = "アラート";
"Delete goal?" = "目標を削除?";
"Activity duration" = "ログごと";
"Interval duration" = "期間ごと";
"Day duration" = "日ごと";

// More
"Version" = "バージョン";
"Help" = "ヘルプ";
"Loading..." = "読込中...";
"Contact us" = "お問い合わせ";
"Review us on iTunes" = "iTunesでレビューする";
"Follow us on Twitter" = "Twitterでフォローする";
"Like us on Facebook" = "Facebookでいいね！を押す";
"Credits" = "クレジット";
"Icon design" = "アイコンデザイン";
"Japanese" = "日本語";
"Korea Distributor" = "Korea Distributor";