add Real HttpClient, List View, icons(red, green semaphor), some refactoring
add availability with pie chart
corrected warnings, and using prettytime for relative time
add tabview with all/failures tabs, with listview in each
add connectivity manager check internet acces before sennding http request
add boot and network receiver, and auto refresh status timeline when we get new check
add content provider, refactor model
changed using Java Thread to using AsyncTask in CheckService
add AlarmManeger for schedulin CheckService running
remove deprecated startManagingCursor
fix alarm manager, some refactoring (success, failes conditions)