Finish the alarm activity

1. Finish the alarm activity
2. Modify the UI
Add About dialog
Add news and statistics fragment

1 Add news and statistics fragment
2 remove the unused fragment
Add statistics_type_item.xml
Show the staststics list
Complete the statistics list
Change the statistics list
Change the json format
Fix issue
Fix issue
Convert statistics.json from utf8 to ansi

On some device android2.3 , when parse the json, it will throw string
wxception if use UTF8