Removed debug log during calculating directory size

Change-Id: I7b95f0485b8924c1078a3a650943ca4172306680
Fix Settings app crash for devices with no USB support.

On emulator and any device that does not support USB connection, the
Settings app crashes as soon as the user tries to view the details of
an installed app. This is because the InstalledAppDetails activity
assumes that the USB service is always started, which is no longer
true due to a change in SystemServer.java (frameworks/base, Change-Id
I6dad511c652bcacc085f27ede5f8f22a6982c6bd). Adding null checks fixes
this issue.

Change-Id: I85263fb795ee06bd61ba28ec12a7161c1f17f4cc
Signed-off-by: Yu Ning <yu.ning@intel.com>
[1/2]Show CPU Info

This shows CPU temp (if available) for every core governor + online + freq

Change-Id: Ia75504bef2c028a731b1be2fcd00d42d41534bf9

Conflicts:
	src/com/android/settings/DevelopmentSettings.java