Fix issue with difference in ansible yum output.

[dvalinrh]

Issue #133

Problem Description

The ansible yum module is returning different contents in the status register when failing on a a straight package install versus "@development Tools". The later yum operation when returning an error does not contain the variable "rc" in the status register, and results in the playbook terminating on syntax and not cleaning up any of the outstanding clouds.

Solution

1. Remove checking the status value set via ansible yum module.
2. Use a rescue block in the role "install_packages" to handle when the yum module fails.
3. In ten_of_us
   • download the yum install status file, and check to see if we have failed.
   • remove duplicate install_status check
   • Always check the install status, regardless if local system or other.

[dvalinrh]

typo

[kdvalin]

Will approve once the typo is addressed