Corrected erroneous JavaDocs descriptions for Clear all and RAM bar position Settings
SystemUI: Added day of the week and AM/PM control to the status bar clock, as well as adding another Clock class (ClockExpanded) to that the notification panel's clock doesn't show the indicators (as there isn't enough room). This is 1/2. Part 2 is in android_packages_apps_Settings

	modified:   core/java/android/provider/Settings.java
	modified:   packages/SystemUI/res/layout/status_bar_expanded_header.xml
	modified:   packages/SystemUI/src/com/android/systemui/statusbar/policy/Clock.java
	new file:   packages/SystemUI/src/com/android/systemui/statusbar/policy/ClockExpanded.java