Ok so here is how it's gonna go: gonna use the android AccountManager to
create a seperate TruckersLog account rather than the g+ signin because
the g+ route has to have an internet connection to do the initial signin
so if there is more than one user, to switch accounts the phone needs to
be connected to the internet and this might not always be possible. So,
the settings screen is where the user will decide where (if anywhere) to
sync his logs in the cloud (g-drive, dropbox, box, etc).