fixes MLHR-887
Squashed commit of the following:

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
Merge pull request #768 from nickholub/inst10_pull

Installer - Mark installation complete with dt.configStatus property
fix #MLHR-864 Installer - Handling Hadoop Not Found
Merge pull request #770 from nickholub/inst11

Installer - Handling Hadoop Not Found
added support for delimiter
Merge pull request #766 from gauravgopi123/887

fixes MLHR-887