Use native sync adapter
Add periodic sync
Add periodic sync
Merge branch 'master' into syncAdapter
Add sync period
Update build.gradle to gradle 1.8 and build tools 18.1
Merge branch 'master' into syncAdapter
Fix gradle version
Fix NPE if no account
Fix UI for sync period
Change action bar background
Close menu when open AccountActivity
Display changes of sync (not tested)
Change cache size and print exception
Backend for actions on Article
Mark read on article opened
Hide password in logs
Fix bad rest request
Update list after new article synced