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Tracks the user during X minuts. Obtains its position every Y minutes.
The device ask the user X and Y when the app starts.

Features:
- Obtains Location & shows Google Maps
- AlarmManager & BroadcastReceivers for time scheduling 
- Notifications
- Logging
- Layouts: portrait & landscape
- i18n: Catalan, Spanish, English
- SharedPreferences: saves X and Y
- android-support-v4: FragmentActivity for using GoogleMaps API v2