Grouping reports be the same error reports. Formating logcat logs

Add formatting Stacktrace and Logcat logs like in Eclipse's Logcat.
Grouping reports by the same error reports using stacktrace log. Now is
able to view/archive/delete reports with the same error. Add also new
box to home page and new dialog window with information about reports
(e.g. times error occurs or last time error occurs)