Settings: follow kitkat's ui

- manage apps; tab selector and ram usage
- battery data usage bar
- app widget toggle

Change-Id: I804b4b47563545d7ab124f4cc4800ef4034bf754

Conflicts:
	res/drawable-hdpi/appwidget_settings_ind_mid_c_holo.9.png
	res/drawable-hdpi/appwidget_settings_ind_mid_l_holo.9.png
	res/drawable-hdpi/appwidget_settings_ind_mid_r_holo.9.png
	res/drawable-hdpi/appwidget_settings_ind_on_c_holo.9.png
	res/drawable-hdpi/appwidget_settings_ind_on_l_holo.9.png
	res/drawable-hdpi/appwidget_settings_ind_on_r_holo.9.png
	res/drawable-mdpi/appwidget_settings_ind_mid_c_holo.9.png
	res/drawable-mdpi/appwidget_settings_ind_mid_l_holo.9.png
	res/drawable-mdpi/appwidget_settings_ind_mid_r_holo.9.png
	res/drawable-mdpi/appwidget_settings_ind_on_c_holo.9.png
	res/drawable-mdpi/appwidget_settings_ind_on_l_holo.9.png
	res/drawable-mdpi/appwidget_settings_ind_on_r_holo.9.png
	res/drawable-nodpi/preview.png
	res/drawable-xhdpi/appwidget_settings_ind_mid_c_holo.9.png
	res/drawable-xhdpi/appwidget_settings_ind_mid_l_holo.9.png
	res/drawable-xhdpi/appwidget_settings_ind_mid_r_holo.9.png
	res/drawable-xhdpi/appwidget_settings_ind_on_c_holo.9.png
	res/drawable-xhdpi/appwidget_settings_ind_on_l_holo.9.png
	res/drawable-xhdpi/appwidget_settings_ind_on_r_holo.9.png
	res/drawable-xxhdpi/appwidget_settings_ind_on_c_holo.9.png
	res/drawable-xxhdpi/appwidget_settings_ind_on_l_holo.9.png
	res/drawable-xxhdpi/appwidget_settings_ind_on_r_holo.9.png
fix derp