Fix #5

https://crashlytics.com/alter-ego-srls/android/apps/org.dronix.android.unisannio/issues/53d49569e3de5099ba8faac3
Fix #3 and #4

https://crashlytics.com/alter-ego-srls/android/apps/org.dronix.android.unisannio/issues/53d418c6e3de5099ba8f468e

https://crashlytics.com/alter-ego-srls/android/apps/org.dronix.android.unisannio/issues/53d41908e3de5099ba8f46cd
Fix #7

https://www.crashlytics.com/alter-ego-srls/android/apps/org.dronix.android.unisannio/issues/53d4fa88e3de5099ba8fff6b
Remove Maps support for Android 2.3
Anticipate activityGraph creation
Fix #5
Fix duplicate map fragment issue