Squashed commit of the following:

commit 2c5280fdee63796c0188ed318e51dde8393e5d60
Author: Ying Wang <wangying@google.com>
Date:   Tue Apr 9 22:03:29 2013 -0700

    Add liblog

    Bug: 8580410
    Change-Id: Iddde0e2eaaf2291d9ba30cf989be7613f604652a

commit f43660c2d0a0e2a665f48277a0107527dbebdc2c
Merge: b1efa96 8d2fef3
Author: Joe Onorato <joeo@google.com>
Date:   Fri Aug 17 00:21:40 2012 -0700

    am 8d2fef3f: am 658c9872: Merge "host modules don\'t need LOCAL_MODULE_TAGS"

    * commit '8d2fef3fa40e01380774f47fb5741c0ad4d5a93a':
      host modules don't need LOCAL_MODULE_TAGS

commit b1efa96f39fc3a427a3deda52dfce655d41f2578
Author: Joe Onorato <joeo@google.com>
Date:   Fri May 18 20:12:36 2012 -0700

    host modules don't need LOCAL_MODULE_TAGS

    Change-Id: I054e1c63144166be3a94c47f7a0763ce3a9e516a

Change-Id: I032dfe81e298776217683a96be2560b3f25c41c0