Issue #45: If a test fails, check if we should have an internet connection.

For now, just log if we do have an internet connection.
Issue #45: refactoring the notification logic
Issue #45: Show a notification if the test fails
Issue #45: Set the color of the warning notification.
Issue #45: when stopping the service, clear all notifications
Issue #45: Strings changes for the notifications.
Issue #45: correction in isMobileDataEnabled() to take into account whether a SIM card is present or not.
Fix for some market crashes
New version 1.14.0
Added proguard mapping file for 1.14.0