- add extra icon for pump battery load in menu bar

.../java/info/nightscout/android/medtronic/MainActivity.java

.../android/medtronic/service/MedtronicCnlIntentService.java

app/src/main/res/drawable-hdpi/battery_0.png

app/src/main/res/drawable-hdpi/battery_100.png

app/src/main/res/drawable-hdpi/battery_25.png

app/src/main/res/drawable-hdpi/battery_50.png

app/src/main/res/drawable-hdpi/battery_75.png

app/src/main/res/drawable-mdpi/battery_0.png

app/src/main/res/drawable-mdpi/battery_100.png

app/src/main/res/drawable-mdpi/battery_25.png

app/src/main/res/drawable-mdpi/battery_50.png

app/src/main/res/drawable-mdpi/battery_75.png

app/src/main/res/drawable-xhdpi/battery_0.png

app/src/main/res/drawable-xhdpi/battery_100.png

app/src/main/res/drawable-xhdpi/battery_25.png

app/src/main/res/drawable-xhdpi/battery_50.png

app/src/main/res/drawable-xhdpi/battery_75.png

app/src/main/res/menu/menu.xml

app/src/main/res/values/strings.xml