Installer - Mark installation complete with dt.configStatus property

commit 7e133324ec3ad44ebb3981a3c6b1d8f6e1478e0c
Author: Nick Holub <nikholub@gmail.com>
Date:   Thu Mar 6 22:06:48 2014 -0800

    fix #MLHR-908 Mark installation complete with dt.configStatus property