Reconcile with jb-mr1-factory-release jb-mr1-release - do not merge

Change-Id: I8de173f6b24b2f82b20e568e577878d8539e5148
Fix issue #7503920: Log spew from vold

Change-Id: Ibfa5b979014f433085b94aab0d3d81bf9269d4b5
Merge tag 'android-4.2.2_r1' of https://android.googlesource.com/platform/system/vold into 1.1

Android 4.2.2 release 1
vold: use blkid to detect filesystem type

In preparation for handling ext4 partitions via vold and fuse.

Change-Id: Ibaccded63a7a293ad53f16afb80448ddd493554c
vold: add support for ext4 media

Depends on:
http://review.cyanogenmod.org/31202
http://review.cyanogenmod.org/31211

Result:
http://pastebin.com/nzUbvW7K

Change-Id: I5bd227e637f2a1ed4d13a2eb81390c56c953f482