fix del boton de back en RouteTrackingActivity.java
Se elimina titulo repetido de activity_route_tracking.xml.
missing files
Merge branch 'master' of https://github.com/eaguerom/PubliExpressGPS

Conflicts:
	PubliExpress/gen/android/support/v7/appcompat/R.java
	PubliExpress/gen/com/google/android/gms/R.java
	PubliExpress/gen/cr/publiexpress/android/R.java
	PubliExpress/res/layout/activity_route_tracking.xml
	PubliExpress/src/cr/publiexpress/android/activity/RouteTrackingActivity.java
Merge branch 'master' of https://github.com/eaguerom/PubliExpressGPS

Conflicts:
	PubliExpress/src/cr/publiexpress/android/activity/RouteTrackingActivity.java
Merge branch 'master' of https://github.com/eaguerom/PubliExpressGPS

Conflicts:
	PubliExpress/src/cr/publiexpress/android/activity/RouteTrackingActivity.java
Se implementa funcionalidad de trazado de rutas en el mapa.