Bump support-v4 and appcompat-v7 versions
Merge branch 'master' into material-design
Bump build tools version
Settings: Enable action bar
Settings: Do not enable action bar using styles

PreferenceActivity extends Activity, so this approach is not reliable.
Settings: Add action bar using android.support.v7.widget.Toolbar

This approach uses setContentView() for Toolbar injection.
Settings: Always disable native action bar
Settings: Add activity layout

This makes us able to wrap the original layout in our own layout and style it.
Settings: Define default styles for Toolbar

So we do not have to style it in code.
Remove unnecessary attributes from styles
Adopt light theme with dark action bar

Keep following Settings styles.
CleanerActivity: Adjust list padding
CleanerActivity: Improve styles of the list item
Make the application's theme more similar to Settings' one
Remove unnecessary resources
SettingsActivity: Use decor view's parent for inflating custom layout
Update LinearColorBar to the latest version
Add new device memory status view
Add new translations for the other locales
apps_list_header: Improve RTL support