For the added flexibility of allowing apps that extend from settings to
have a different package name, these instances of com.android.settings
as a xmlns need to be replaced with res-auto (which subsitutes the
package name at build time).
Bug: 174264676
Test: manual (sdk_gphone), make -j20 SettingsRoboTests
Change-Id: I03acda25dbf4d028cc73b77f41ad5dedca110ecb
Update wifi_signal to be a vector drawable that uses the color
from the theme attribute wifi_signal_color.
Bug: 20452312
Change-Id: Id151406e7dd3487050a0d3f440b0d620c8c84dcb
