Squashed commit of installd changes

commit 28d7796cef6dfb1c892b736fc89c5bd9d919ff29
Author: rpcraig <rpcraig@tycho.ncsc.mil>
Date:   Wed Nov 28 09:23:18 2012 -0500

    Proper security labeling of multi-user data directories.

    This patch covers 2 cases. When an app is installed
    and the resulting data directory is created for all
    existing users. And when a new user is created and
    all existing app data directories are created for
    the new user.

Signed-off-by: rpcraig <rpcraig@tycho.ncsc.mil>

    Change-Id: I01f2a9084dfe7886087b1497070b0d7f2ad8478e

    Conflicts:
        cmds/installd/commands.c
        services/java/com/android/server/pm/Installer.java
        services/java/com/android/server/pm/PackageManagerService.java
        services/java/com/android/server/pm/Settings.java

commit 91dfb0045a0026b185fa66c5c95289335bd2d543
Author: Pawit Pornkitprasan <p.pawit@gmail.com>
Date:   Sun Dec 25 17:37:53 2011 +0700

    installd: Delete cache properly for devices using datadata partition

    The java side already checks /data/data for free space but installd
    still checks /data causing it to never reap the cache (because it
    thinks that enough free space is available.)

    Change-Id: I736af6ff7ea0c8ae07900168f6b8ac2f7a4dbe0b

commit 777c17568851e1dc8b02213b2a77a3d7b456fc7d
Author: ctso <ctsoyars@gmail.com>
Date:   Thu Jun 24 02:03:47 2010 +0000

    DexOpt anything on /system in /cache/dalvik-cache

    Change-Id: Id41d37047f2fcb90d513ac091dfcb85492473689

    Allow property to disable dexopt on /cache

    Change-Id: Ic74707c4bead387bbf82e4c6d5037efc2d2ebeaf

Change-Id: Ic74707c4bead387bbf82e4c6d5037efc2d2ebeaf