Added a null check on mIntent before trying to access it's information

closes #87

Signed-off-by: Ricky Barrette <rickbarrette@gmail.com>

LocationLib/src/com/TwentyCodes/android/SkyHook/SkyHookService.java

@@ -177,12 +177,14 @@ public class SkyHookService extends Service implements GeoPointLocationListener,
 		
 		this.mIntent = intent;
 		
+		if(intent != null){
 			if (intent.hasExtra(INTENT_EXTRA_PERIOD_BETWEEN_UPDATES))
 				mPeriod = intent.getLongExtra(INTENT_EXTRA_PERIOD_BETWEEN_UPDATES, 60000L);
 			
 			if (intent.hasExtra(INTENT_EXTRA_REQUIRED_ACCURACY))
 				mRequiredAccuracy = intent.getIntExtra(INTENT_EXTRA_REQUIRED_ACCURACY, -1);
 		}
+	}
 	
 	/**
 	 * registers our Receiver the starts the service with the alarm manager