Attempt to use hased device id as serial
Fall back to ANDROID_ID
Fall back to random UUID

Store serial in shared prefs
Test for authentication string in exception message because 401 is consumed by volley
Center buddy message on tablets
Improve buddy message explanation
beautify xml
Add padding make font size smaller
Remove warning icon
Rationalise padding
Set updates_disabled appearance to android:textAppearanceMedium
Set button weight on button layout
Put all menu items in menu (don't use actionbar)
Change "website" to "open web site"
Improve buddy message description
Add padding between explanation and buttons
Bump version