Total and available fields missing in Settings storage menu

After formatting SD card or inserting an SD card the total and
available space fields in Settings storage are missing.
This fix add those fields after SD card has been mounted.

Change-Id: Id6c1d1963effdb9656c8eb1c567b913bc4d98bd2
Fix memory leak in ManageApplication

ApplicationsAdapter new a Session member and make it has a reference to
it self. If we don't release it explicitly, the cross reference will
cause memory leak.

Change-Id: Iecce35ae1d56d98cee6347e84d3a3ff57f3b15a5
AppOps: Modify Chinese string for Camera as MIIT's suggestion.

MIIT gave their suggestion for Camera's summary strings.

Change-Id: I9378a160fa394e8cd6587dd484987ff43b7c979e