Re-implemented app sidebar

Change-Id: I296059a3cc688a567e7e90cccfdf4b8e824cfedf
Re-implement center clock in status bar

Change-Id: Ia833627507368460f9a52fa95792e05cb96d6fa9
Re-implement am/pm to status bar clock

Change-Id: I03d0784dcf6adcbc9845cb29c3ae95149e330ab0