Merge changes I2a295957,I8f280af5,Ic05b1f40 into tizen
authorJaemin Ryu <jm77.ryu@samsung.com>
Tue, 19 Apr 2016 02:16:22 +0000 (19:16 -0700)
committerGerrit Code Review <gerrit@review.vlan103.tizen.org>
Tue, 19 Apr 2016 02:16:22 +0000 (19:16 -0700)
* changes:
  Add default groups for the user of zone
  Add functions to add/remove a user member to group in shadow file
  Add a function to traverse shadow files


Trivial merge