es_ES: Added spanish translations

Change-Id: I41ecda8dd6d65bd0efa66bae447ba20c2a5d5445
Make capitalization of relative date strings consistent for German
locale.

Change-Id: I4978e00a7944540c378b4a163df32a4e3772b4a3
Merge commit 'android-4.2.2_r1' into mr1.1-staging

Conflicts:
	core/java/android/os/Trace.java
	core/java/android/widget/Toast.java
	core/res/res/values-cs/strings.xml
	core/res/res/values-el/strings.xml
	core/res/res/values-iw/strings.xml
	core/res/res/values/config.xml
	core/res/res/values/symbols.xml
	media/java/android/media/AudioService.java
	packages/SystemUI/res/values-sv/strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/BatteryController.java
	packages/SystemUI/src/com/android/systemui/usb/StorageNotification.java
	policy/src/com/android/internal/policy/impl/keyguard/KeyguardHostView.java
	policy/src/com/android/internal/policy/impl/keyguard/KeyguardMessageArea.java
	policy/src/com/android/internal/policy/impl/keyguard/KeyguardViewManager.java
	policy/src/com/android/internal/policy/impl/keyguard/KeyguardViewMediator.java
	services/java/com/android/server/NotificationManagerService.java
	services/java/com/android/server/power/ElectronBeam.java

Change-Id: I60b8ddf20a1d7bcf9dc7b1a4ed841aaa4d953294
Add back backlight brightness curve adjustment.

Change-Id: I58408111d6366a281303afb469d78588ae88d275
Add method to PowerManager that allows querying the lowest possible
brightness.

Used by the auto-brightness adjustment to adjust the sliders.

Change-Id: Idb58fd86dee1a053fe858291be6c9b3169ac4247