Add center clock. Thx aokp Thx vanir team

Squashed commit of the following:

commit 15159b30fa44e575073617814918734dcee0e7d6
Author: nuclearmistake <nuclearmistake@gmail.com>
Date:   Mon Oct 29 13:09:26 2012 -0400

    Unbroke center clock.

    Removed fail inheritance, making the clock on the expanded notifications bar, the right clock, and the center clock, all instances of Clock. Internally, behavior is regulated based on the tags given to the individual clocks in the appropriate layout files.

    Change-Id: Ia87553a06217ab1b8f6cb06247e3a91c74c9cae0

commit d1592b1dfba4a699e5c73394dd164bd824f69ddb
Author: nuclearmistake <nuclearmistake@gmail.com>
Date:   Fri Sep 14 09:52:02 2012 -0400

    Statusbar Clock Mods (1/2)

    commit b241b11a0224cbefe1f4e786c31f7b3b4152096b
    Author: nuclearmistake <nuclearmistake@gmail.com>
    Date:   Fri Sep 14 09:49:45 2012 -0400

        actually builds and works

        Change-Id: Ic2cbbfae2c3d0c466b65ae1d0addc06d551d4118

    commit 4fd6fc8128c3d51f4987f10aaee153fa96b9f659
    Author: Adam Fisch <adammfisch@gmail.com>
    Date:   Sat Sep 8 00:44:59 2012 -0400

        SystemUI: Clock - right/center/off (Part 1 of 2)

        Allow for clock to be placed to the right/centered/off

        Ported from AOKP clock mod by Adam Fisch
        http://gerrit.sudoservers.com/#/c/1963/

        Change-Id: Ia06708f4ba7629d76d6625b87b22cca999d01e1b
        Signed-off-by: Desterly <d3s7royer@gmail.com>

        Conflicts:

        	core/java/android/provider/Settings.java
        	packages/SystemUI/res/layout/status_bar_expanded_header.xml
        	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
        	packages/SystemUI/src/com/android/systemui/statusbar/policy/Clock.java

    Change-Id: Ia51e59ff12e7d50cf82734d158255153573065f5

Change-Id: Id11848757aae484680194fafb8cc63db35f06840

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/res/layout/status_bar.xml
	packages/SystemUI/src/com/android/systemui/statusbar/policy/Clock.java