BatteryMeter: Make <15% text color less orange

ps2: use arrays and the existing level==>color code to affect
    the same change as the previous PS's java fix (that broke the text
    updating below 15%)

-Vanir

Change-Id: Ia2db9afcd424bc6a703ea0ff34b3d44dbcf88276
SystemUI: Update DE translation

Change-Id: I6045bd1ad15053bf061cbc88896213dde2a15de9