doc change to address #335

Doc change to ensure people do not run into defect #335 when following the instructions.  We still need to address the defect.
Add repo based installer.
Merge pull request #5 from galthaus/install-tools2

Add repo based installer.
Rearrange install script to reduce yum churn.
Merge pull request #6 from galthaus/install-tools

Rearrange install script to reduce yum churn.
More tweaks to installer.
Merge pull request #7 from galthaus/install-tools

More tweaks to installer.
Update URL
Merge pull request #8 from galthaus/install-tools

Update URL
Update README.md
Update README.md
Merge pull request #9 from rackn/develop

Convert installation method to single pull script