Update iml files to IDEA version 13
Implement sign in and sign out buttons
Basic sync adapter
Set sync adapter syncable attributes based on signed in accounts
Add okhttp and gson libraries
Simple implementation of history sync
Remove unused style KeypadButtonStyle
Get a fresh token each time a sync is needed, and make sync request
every time history is modified.
Refresh history adapter when there is new data coming in
Bump version to 4.0.1
Remove AF1953 and Xhosa
Update project.properties
Update build script to include AccountChooserCompat
Update build script
Prevent crash when closing drawer